398168960

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1$

素因数の和:165

約数の個数: 256

約数和(自身を含む): 1165639680

約数和(自身を除く): 767470720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 47, 56, 61, 62, 64, 70, 80, 94, 112, 122, 124, 128, 140, 155, 160, 188, 217, 224, 235, 244, 248, 280, 305, 310, 320, 329, 376, 427, 434, 448, 470, 488, 496, 560, 610, 620, 640, 658, 752, 854, 868, 896, 940, 976, 992, 1085, 1120, 1220, 1240, 1316, 1457, 1504, 1645, 1708, 1736, 1880, 1891, 1952, 1984, 2135, 2170, 2240, 2440, 2480, 2632, 2867, 2914, 3008, 3290, 3416, 3472, 3760, 3782, 3904, 3968, 4270, 4340, 4480, 4880, 4960, 5264, 5734, 5828, 6016, 6580, 6832, 6944, 7285, 7520, 7564, 7808, 8540, 8680, 9455, 9760, 9920, 10199, 10528, 11468, 11656, 13160, 13237, 13664, 13888, 14335, 14570, 15040, 15128, 17080, 17360, 18910, 19520, 19840, 20069, 20398, 21056, 22936, 23312, 26320, 26474, 27328, 27776, 28670, 29140, 30080, 30256, 34160, 34720, 37820, 39040, 40138, 40796, 42112, 45872, 46624, 50995, 52640, 52948, 54656, 57340, 58280, 60512, 66185, 68320, 69440, 75640, 80276, 81592, 88877, 91744, 93248, 100345, 101990, 105280, 105896, 114680, 116560, 121024, 132370, 136640, 138880, 151280, 160552, 163184, 177754, 183488, 186496, 200690, 203980, 210560, 211792, 229360, 233120, 242048, 264740, 273280, 302560, 321104, 326368, 355508, 366976, 401380, 407960, 423584, 444385, 458720, 466240, 529480, 605120, 622139, 642208, 652736, 711016, 802760, 815920, 847168, 888770, 917440, 932480, 1058960, 1210240, 1244278, 1284416, 1305472, 1422032, 1605520, 1631840, 1694336, 1777540, 1834880, 2117920, 2488556, 2568832, 2844064, 3110695, 3211040, 3263680, 3555080, 4235840, 4977112, 5688128, 6221390, 6422080, 6527360, 7110160, 8471680, 9954224, 11376256, 12442780, 12844160, 14220320, 19908448, 24885560, 28440640, 39816896, 49771120, 56881280, 79633792, 99542240, 199084480, 398168960]

約数ペア:

[(1, 398168960), (2, 199084480), (4, 99542240), (5, 79633792), (7, 56881280), (8, 49771120), (10, 39816896), (14, 28440640), (16, 24885560), (20, 19908448), (28, 14220320), (31, 12844160), (32, 12442780), (35, 11376256), (40, 9954224), (47, 8471680), (56, 7110160), (61, 6527360), (62, 6422080), (64, 6221390), (70, 5688128), (80, 4977112), (94, 4235840), (112, 3555080), (122, 3263680), (124, 3211040), (128, 3110695), (140, 2844064), (155, 2568832), (160, 2488556), (188, 2117920), (217, 1834880), (224, 1777540), (235, 1694336), (244, 1631840), (248, 1605520), (280, 1422032), (305, 1305472), (310, 1284416), (320, 1244278), (329, 1210240), (376, 1058960), (427, 932480), (434, 917440), (448, 888770), (470, 847168), (488, 815920), (496, 802760), (560, 711016), (610, 652736), (620, 642208), (640, 622139), (658, 605120), (752, 529480), (854, 466240), (868, 458720), (896, 444385), (940, 423584), (976, 407960), (992, 401380), (1085, 366976), (1120, 355508), (1220, 326368), (1240, 321104), (1316, 302560), (1457, 273280), (1504, 264740), (1645, 242048), (1708, 233120), (1736, 229360), (1880, 211792), (1891, 210560), (1952, 203980), (1984, 200690), (2135, 186496), (2170, 183488), (2240, 177754), (2440, 163184), (2480, 160552), (2632, 151280), (2867, 138880), (2914, 136640), (3008, 132370), (3290, 121024), (3416, 116560), (3472, 114680), (3760, 105896), (3782, 105280), (3904, 101990), (3968, 100345), (4270, 93248), (4340, 91744), (4480, 88877), (4880, 81592), (4960, 80276), (5264, 75640), (5734, 69440), (5828, 68320), (6016, 66185), (6580, 60512), (6832, 58280), (6944, 57340), (7285, 54656), (7520, 52948), (7564, 52640), (7808, 50995), (8540, 46624), (8680, 45872), (9455, 42112), (9760, 40796), (9920, 40138), (10199, 39040), (10528, 37820), (11468, 34720), (11656, 34160), (13160, 30256), (13237, 30080), (13664, 29140), (13888, 28670), (14335, 27776), (14570, 27328), (15040, 26474), (15128, 26320), (17080, 23312), (17360, 22936), (18910, 21056), (19520, 20398), (19840, 20069)]