28151480

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{53}}^1\times {\mathrm{271}}^1$

素因数の和:349

約数の個数: 96

約数和(自身を含む): 75349440

約数和(自身を除く): 47197960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 53, 56, 70, 98, 106, 140, 196, 212, 245, 265, 271, 280, 371, 392, 424, 490, 530, 542, 742, 980, 1060, 1084, 1355, 1484, 1855, 1897, 1960, 2120, 2168, 2597, 2710, 2968, 3710, 3794, 5194, 5420, 7420, 7588, 9485, 10388, 10840, 12985, 13279, 14363, 14840, 15176, 18970, 20776, 25970, 26558, 28726, 37940, 51940, 53116, 57452, 66395, 71815, 75880, 100541, 103880, 106232, 114904, 132790, 143630, 201082, 265580, 287260, 402164, 502705, 531160, 574520, 703787, 804328, 1005410, 1407574, 2010820, 2815148, 3518935, 4021640, 5630296, 7037870, 14075740, 28151480]

約数ペア:

[(1, 28151480), (2, 14075740), (4, 7037870), (5, 5630296), (7, 4021640), (8, 3518935), (10, 2815148), (14, 2010820), (20, 1407574), (28, 1005410), (35, 804328), (40, 703787), (49, 574520), (53, 531160), (56, 502705), (70, 402164), (98, 287260), (106, 265580), (140, 201082), (196, 143630), (212, 132790), (245, 114904), (265, 106232), (271, 103880), (280, 100541), (371, 75880), (392, 71815), (424, 66395), (490, 57452), (530, 53116), (542, 51940), (742, 37940), (980, 28726), (1060, 26558), (1084, 25970), (1355, 20776), (1484, 18970), (1855, 15176), (1897, 14840), (1960, 14363), (2120, 13279), (2168, 12985), (2597, 10840), (2710, 10388), (2968, 9485), (3710, 7588), (3794, 7420), (5194, 5420)]