18775440

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{293}}^1$

素因数の和:401

約数の個数: 120

約数和(自身を含む): 63980280

約数和(自身を除く): 45204840

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 89, 90, 120, 144, 178, 180, 240, 267, 293, 356, 360, 445, 534, 586, 712, 720, 801, 879, 890, 1068, 1172, 1335, 1424, 1465, 1602, 1758, 1780, 2136, 2344, 2637, 2670, 2930, 3204, 3516, 3560, 4005, 4272, 4395, 4688, 5274, 5340, 5860, 6408, 7032, 7120, 8010, 8790, 10548, 10680, 11720, 12816, 13185, 14064, 16020, 17580, 21096, 21360, 23440, 26077, 26370, 32040, 35160, 42192, 52154, 52740, 64080, 70320, 78231, 104308, 105480, 130385, 156462, 208616, 210960, 234693, 260770, 312924, 391155, 417232, 469386, 521540, 625848, 782310, 938772, 1043080, 1173465, 1251696, 1564620, 1877544, 2086160, 2346930, 3129240, 3755088, 4693860, 6258480, 9387720, 18775440]

約数ペア:

[(1, 18775440), (2, 9387720), (3, 6258480), (4, 4693860), (5, 3755088), (6, 3129240), (8, 2346930), (9, 2086160), (10, 1877544), (12, 1564620), (15, 1251696), (16, 1173465), (18, 1043080), (20, 938772), (24, 782310), (30, 625848), (36, 521540), (40, 469386), (45, 417232), (48, 391155), (60, 312924), (72, 260770), (80, 234693), (89, 210960), (90, 208616), (120, 156462), (144, 130385), (178, 105480), (180, 104308), (240, 78231), (267, 70320), (293, 64080), (356, 52740), (360, 52154), (445, 42192), (534, 35160), (586, 32040), (712, 26370), (720, 26077), (801, 23440), (879, 21360), (890, 21096), (1068, 17580), (1172, 16020), (1335, 14064), (1424, 13185), (1465, 12816), (1602, 11720), (1758, 10680), (1780, 10548), (2136, 8790), (2344, 8010), (2637, 7120), (2670, 7032), (2930, 6408), (3204, 5860), (3516, 5340), (3560, 5274), (4005, 4688), (4272, 4395)]