638996960

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{199}}^1$

素因数の和:329

約数の個数: 192

約数和(自身を含む): 1799884800

約数和(自身を除く): 1160887840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 47, 56, 61, 70, 80, 94, 112, 122, 140, 160, 188, 199, 224, 235, 244, 280, 305, 329, 376, 398, 427, 470, 488, 560, 610, 658, 752, 796, 854, 940, 976, 995, 1120, 1220, 1316, 1393, 1504, 1592, 1645, 1708, 1880, 1952, 1990, 2135, 2440, 2632, 2786, 2867, 3184, 3290, 3416, 3760, 3980, 4270, 4880, 5264, 5572, 5734, 6368, 6580, 6832, 6965, 7520, 7960, 8540, 9353, 9760, 10528, 11144, 11468, 12139, 13160, 13664, 13930, 14335, 15920, 17080, 18706, 20069, 22288, 22936, 24278, 26320, 27860, 28670, 31840, 34160, 37412, 40138, 44576, 45872, 46765, 48556, 52640, 55720, 57340, 60695, 65471, 68320, 74824, 80276, 84973, 91744, 93530, 97112, 100345, 111440, 114680, 121390, 130942, 149648, 160552, 169946, 187060, 194224, 200690, 222880, 229360, 242780, 261884, 299296, 321104, 327355, 339892, 374120, 388448, 401380, 424865, 458720, 485560, 523768, 570533, 642208, 654710, 679784, 748240, 802760, 849730, 971120, 1047536, 1141066, 1309420, 1359568, 1496480, 1605520, 1699460, 1942240, 2095072, 2282132, 2618840, 2719136, 2852665, 3211040, 3398920, 3993731, 4564264, 5237680, 5705330, 6797840, 7987462, 9128528, 10475360, 11410660, 13595680, 15974924, 18257056, 19968655, 22821320, 31949848, 39937310, 45642640, 63899696, 79874620, 91285280, 127799392, 159749240, 319498480, 638996960]

約数ペア:

[(1, 638996960), (2, 319498480), (4, 159749240), (5, 127799392), (7, 91285280), (8, 79874620), (10, 63899696), (14, 45642640), (16, 39937310), (20, 31949848), (28, 22821320), (32, 19968655), (35, 18257056), (40, 15974924), (47, 13595680), (56, 11410660), (61, 10475360), (70, 9128528), (80, 7987462), (94, 6797840), (112, 5705330), (122, 5237680), (140, 4564264), (160, 3993731), (188, 3398920), (199, 3211040), (224, 2852665), (235, 2719136), (244, 2618840), (280, 2282132), (305, 2095072), (329, 1942240), (376, 1699460), (398, 1605520), (427, 1496480), (470, 1359568), (488, 1309420), (560, 1141066), (610, 1047536), (658, 971120), (752, 849730), (796, 802760), (854, 748240), (940, 679784), (976, 654710), (995, 642208), (1120, 570533), (1220, 523768), (1316, 485560), (1393, 458720), (1504, 424865), (1592, 401380), (1645, 388448), (1708, 374120), (1880, 339892), (1952, 327355), (1990, 321104), (2135, 299296), (2440, 261884), (2632, 242780), (2786, 229360), (2867, 222880), (3184, 200690), (3290, 194224), (3416, 187060), (3760, 169946), (3980, 160552), (4270, 149648), (4880, 130942), (5264, 121390), (5572, 114680), (5734, 111440), (6368, 100345), (6580, 97112), (6832, 93530), (6965, 91744), (7520, 84973), (7960, 80276), (8540, 74824), (9353, 68320), (9760, 65471), (10528, 60695), (11144, 57340), (11468, 55720), (12139, 52640), (13160, 48556), (13664, 46765), (13930, 45872), (14335, 44576), (15920, 40138), (17080, 37412), (18706, 34160), (20069, 31840), (22288, 28670), (22936, 27860), (24278, 26320)]