19660080

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{677}}^1$

素因数の和:715

約数の個数: 120

約数和(自身を含む): 67089456

約数和(自身を除く): 47429376

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 33, 40, 44, 48, 55, 60, 66, 80, 88, 110, 120, 121, 132, 165, 176, 220, 240, 242, 264, 330, 363, 440, 484, 528, 605, 660, 677, 726, 880, 968, 1210, 1320, 1354, 1452, 1815, 1936, 2031, 2420, 2640, 2708, 2904, 3385, 3630, 4062, 4840, 5416, 5808, 6770, 7260, 7447, 8124, 9680, 10155, 10832, 13540, 14520, 14894, 16248, 20310, 22341, 27080, 29040, 29788, 32496, 37235, 40620, 44682, 54160, 59576, 74470, 81240, 81917, 89364, 111705, 119152, 148940, 162480, 163834, 178728, 223410, 245751, 297880, 327668, 357456, 409585, 446820, 491502, 595760, 655336, 819170, 893640, 983004, 1228755, 1310672, 1638340, 1787280, 1966008, 2457510, 3276680, 3932016, 4915020, 6553360, 9830040, 19660080]

約数ペア:

[(1, 19660080), (2, 9830040), (3, 6553360), (4, 4915020), (5, 3932016), (6, 3276680), (8, 2457510), (10, 1966008), (11, 1787280), (12, 1638340), (15, 1310672), (16, 1228755), (20, 983004), (22, 893640), (24, 819170), (30, 655336), (33, 595760), (40, 491502), (44, 446820), (48, 409585), (55, 357456), (60, 327668), (66, 297880), (80, 245751), (88, 223410), (110, 178728), (120, 163834), (121, 162480), (132, 148940), (165, 119152), (176, 111705), (220, 89364), (240, 81917), (242, 81240), (264, 74470), (330, 59576), (363, 54160), (440, 44682), (484, 40620), (528, 37235), (605, 32496), (660, 29788), (677, 29040), (726, 27080), (880, 22341), (968, 20310), (1210, 16248), (1320, 14894), (1354, 14520), (1452, 13540), (1815, 10832), (1936, 10155), (2031, 9680), (2420, 8124), (2640, 7447), (2708, 7260), (2904, 6770), (3385, 5808), (3630, 5416), (4062, 4840)]