12887280

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{2557}}^1$

素因数の和:2583

約数の個数: 120

約数和(自身を含む): 49481952

約数和(自身を除く): 36594672

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 105, 112, 120, 126, 140, 144, 168, 180, 210, 240, 252, 280, 315, 336, 360, 420, 504, 560, 630, 720, 840, 1008, 1260, 1680, 2520, 2557, 5040, 5114, 7671, 10228, 12785, 15342, 17899, 20456, 23013, 25570, 30684, 35798, 38355, 40912, 46026, 51140, 53697, 61368, 71596, 76710, 89495, 92052, 102280, 107394, 115065, 122736, 143192, 153420, 161091, 178990, 184104, 204560, 214788, 230130, 268485, 286384, 306840, 322182, 357980, 368208, 429576, 460260, 536970, 613680, 644364, 715960, 805455, 859152, 920520, 1073940, 1288728, 1431920, 1610910, 1841040, 2147880, 2577456, 3221820, 4295760, 6443640, 12887280]

約数ペア:

[(1, 12887280), (2, 6443640), (3, 4295760), (4, 3221820), (5, 2577456), (6, 2147880), (7, 1841040), (8, 1610910), (9, 1431920), (10, 1288728), (12, 1073940), (14, 920520), (15, 859152), (16, 805455), (18, 715960), (20, 644364), (21, 613680), (24, 536970), (28, 460260), (30, 429576), (35, 368208), (36, 357980), (40, 322182), (42, 306840), (45, 286384), (48, 268485), (56, 230130), (60, 214788), (63, 204560), (70, 184104), (72, 178990), (80, 161091), (84, 153420), (90, 143192), (105, 122736), (112, 115065), (120, 107394), (126, 102280), (140, 92052), (144, 89495), (168, 76710), (180, 71596), (210, 61368), (240, 53697), (252, 51140), (280, 46026), (315, 40912), (336, 38355), (360, 35798), (420, 30684), (504, 25570), (560, 23013), (630, 20456), (720, 17899), (840, 15342), (1008, 12785), (1260, 10228), (1680, 7671), (2520, 5114), (2557, 5040)]