28538640

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{3049}}^1$

素因数の和:3081

約数の個数: 120

約数和(自身を含む): 103248600

約数和(自身を除く): 74709960

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 36, 39, 40, 45, 48, 52, 60, 65, 72, 78, 80, 90, 104, 117, 120, 130, 144, 156, 180, 195, 208, 234, 240, 260, 312, 360, 390, 468, 520, 585, 624, 720, 780, 936, 1040, 1170, 1560, 1872, 2340, 3049, 3120, 4680, 6098, 9147, 9360, 12196, 15245, 18294, 24392, 27441, 30490, 36588, 39637, 45735, 48784, 54882, 60980, 73176, 79274, 91470, 109764, 118911, 121960, 137205, 146352, 158548, 182940, 198185, 219528, 237822, 243920, 274410, 317096, 356733, 365880, 396370, 439056, 475644, 548820, 594555, 634192, 713466, 731760, 792740, 951288, 1097640, 1189110, 1426932, 1585480, 1783665, 1902576, 2195280, 2378220, 2853864, 3170960, 3567330, 4756440, 5707728, 7134660, 9512880, 14269320, 28538640]

約数ペア:

[(1, 28538640), (2, 14269320), (3, 9512880), (4, 7134660), (5, 5707728), (6, 4756440), (8, 3567330), (9, 3170960), (10, 2853864), (12, 2378220), (13, 2195280), (15, 1902576), (16, 1783665), (18, 1585480), (20, 1426932), (24, 1189110), (26, 1097640), (30, 951288), (36, 792740), (39, 731760), (40, 713466), (45, 634192), (48, 594555), (52, 548820), (60, 475644), (65, 439056), (72, 396370), (78, 365880), (80, 356733), (90, 317096), (104, 274410), (117, 243920), (120, 237822), (130, 219528), (144, 198185), (156, 182940), (180, 158548), (195, 146352), (208, 137205), (234, 121960), (240, 118911), (260, 109764), (312, 91470), (360, 79274), (390, 73176), (468, 60980), (520, 54882), (585, 48784), (624, 45735), (720, 39637), (780, 36588), (936, 30490), (1040, 27441), (1170, 24392), (1560, 18294), (1872, 15245), (2340, 12196), (3049, 9360), (3120, 9147), (4680, 6098)]