28272420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{131}}^1$

素因数の和:266

約数の個数: 144

約数和(自身を含む): 95135040

約数和(自身を除く): 66862620

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 109, 110, 131, 132, 165, 180, 198, 218, 220, 262, 327, 330, 393, 396, 436, 495, 524, 545, 654, 655, 660, 786, 981, 990, 1090, 1179, 1199, 1308, 1310, 1441, 1572, 1635, 1962, 1965, 1980, 2180, 2358, 2398, 2620, 2882, 3270, 3597, 3924, 3930, 4323, 4716, 4796, 4905, 5764, 5895, 5995, 6540, 7194, 7205, 7860, 8646, 9810, 10791, 11790, 11990, 12969, 14279, 14388, 14410, 17292, 17985, 19620, 21582, 21615, 23580, 23980, 25938, 28558, 28820, 35970, 42837, 43164, 43230, 51876, 53955, 57116, 64845, 71395, 71940, 85674, 86460, 107910, 128511, 129690, 142790, 157069, 171348, 214185, 215820, 257022, 259380, 285580, 314138, 428370, 471207, 514044, 628276, 642555, 785345, 856740, 942414, 1285110, 1413621, 1570690, 1884828, 2356035, 2570220, 2827242, 3141380, 4712070, 5654484, 7068105, 9424140, 14136210, 28272420]

約数ペア:

[(1, 28272420), (2, 14136210), (3, 9424140), (4, 7068105), (5, 5654484), (6, 4712070), (9, 3141380), (10, 2827242), (11, 2570220), (12, 2356035), (15, 1884828), (18, 1570690), (20, 1413621), (22, 1285110), (30, 942414), (33, 856740), (36, 785345), (44, 642555), (45, 628276), (55, 514044), (60, 471207), (66, 428370), (90, 314138), (99, 285580), (109, 259380), (110, 257022), (131, 215820), (132, 214185), (165, 171348), (180, 157069), (198, 142790), (218, 129690), (220, 128511), (262, 107910), (327, 86460), (330, 85674), (393, 71940), (396, 71395), (436, 64845), (495, 57116), (524, 53955), (545, 51876), (654, 43230), (655, 43164), (660, 42837), (786, 35970), (981, 28820), (990, 28558), (1090, 25938), (1179, 23980), (1199, 23580), (1308, 21615), (1310, 21582), (1441, 19620), (1572, 17985), (1635, 17292), (1962, 14410), (1965, 14388), (1980, 14279), (2180, 12969), (2358, 11990), (2398, 11790), (2620, 10791), (2882, 9810), (3270, 8646), (3597, 7860), (3924, 7205), (3930, 7194), (4323, 6540), (4716, 5995), (4796, 5895), (4905, 5764)]