1987440

素因数分解:

$2^4\times 3^1\times 5^1\times 7^2\times {\mathrm{13}}^2$

素因数の和:56

約数の個数: 180

約数和(自身を含む): 7760664

約数和(自身を除く): 5773224

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 16, 20, 21, 24, 26, 28, 30, 35, 39, 40, 42, 48, 49, 52, 56, 60, 65, 70, 78, 80, 84, 91, 98, 104, 105, 112, 120, 130, 140, 147, 156, 168, 169, 182, 195, 196, 208, 210, 240, 245, 260, 273, 280, 294, 312, 336, 338, 364, 390, 392, 420, 455, 490, 507, 520, 546, 560, 588, 624, 637, 676, 728, 735, 780, 784, 840, 845, 910, 980, 1014, 1040, 1092, 1176, 1183, 1274, 1352, 1365, 1456, 1470, 1560, 1680, 1690, 1820, 1911, 1960, 2028, 2184, 2352, 2366, 2535, 2548, 2704, 2730, 2940, 3120, 3185, 3380, 3549, 3640, 3822, 3920, 4056, 4368, 4732, 5070, 5096, 5460, 5880, 5915, 6370, 6760, 7098, 7280, 7644, 8112, 8281, 9464, 9555, 10140, 10192, 10920, 11760, 11830, 12740, 13520, 14196, 15288, 16562, 17745, 18928, 19110, 20280, 21840, 23660, 24843, 25480, 28392, 30576, 33124, 35490, 38220, 40560, 41405, 47320, 49686, 50960, 56784, 66248, 70980, 76440, 82810, 94640, 99372, 124215, 132496, 141960, 152880, 165620, 198744, 248430, 283920, 331240, 397488, 496860, 662480, 993720, 1987440]

約数ペア:

[(1, 1987440), (2, 993720), (3, 662480), (4, 496860), (5, 397488), (6, 331240), (7, 283920), (8, 248430), (10, 198744), (12, 165620), (13, 152880), (14, 141960), (15, 132496), (16, 124215), (20, 99372), (21, 94640), (24, 82810), (26, 76440), (28, 70980), (30, 66248), (35, 56784), (39, 50960), (40, 49686), (42, 47320), (48, 41405), (49, 40560), (52, 38220), (56, 35490), (60, 33124), (65, 30576), (70, 28392), (78, 25480), (80, 24843), (84, 23660), (91, 21840), (98, 20280), (104, 19110), (105, 18928), (112, 17745), (120, 16562), (130, 15288), (140, 14196), (147, 13520), (156, 12740), (168, 11830), (169, 11760), (182, 10920), (195, 10192), (196, 10140), (208, 9555), (210, 9464), (240, 8281), (245, 8112), (260, 7644), (273, 7280), (280, 7098), (294, 6760), (312, 6370), (336, 5915), (338, 5880), (364, 5460), (390, 5096), (392, 5070), (420, 4732), (455, 4368), (490, 4056), (507, 3920), (520, 3822), (546, 3640), (560, 3549), (588, 3380), (624, 3185), (637, 3120), (676, 2940), (728, 2730), (735, 2704), (780, 2548), (784, 2535), (840, 2366), (845, 2352), (910, 2184), (980, 2028), (1014, 1960), (1040, 1911), (1092, 1820), (1176, 1690), (1183, 1680), (1274, 1560), (1352, 1470), (1365, 1456)]