28471940

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{1709}}^1$

素因数の和:1749

約数の個数: 72

約数和(自身を含む): 73687320

約数和(自身を除く): 45215380

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 49, 68, 70, 85, 98, 119, 140, 170, 196, 238, 245, 340, 476, 490, 595, 833, 980, 1190, 1666, 1709, 2380, 3332, 3418, 4165, 6836, 8330, 8545, 11963, 16660, 17090, 23926, 29053, 34180, 47852, 58106, 59815, 83741, 116212, 119630, 145265, 167482, 203371, 239260, 290530, 334964, 406742, 418705, 581060, 813484, 837410, 1016855, 1423597, 1674820, 2033710, 2847194, 4067420, 5694388, 7117985, 14235970, 28471940]

約数ペア:

[(1, 28471940), (2, 14235970), (4, 7117985), (5, 5694388), (7, 4067420), (10, 2847194), (14, 2033710), (17, 1674820), (20, 1423597), (28, 1016855), (34, 837410), (35, 813484), (49, 581060), (68, 418705), (70, 406742), (85, 334964), (98, 290530), (119, 239260), (140, 203371), (170, 167482), (196, 145265), (238, 119630), (245, 116212), (340, 83741), (476, 59815), (490, 58106), (595, 47852), (833, 34180), (980, 29053), (1190, 23926), (1666, 17090), (1709, 16660), (2380, 11963), (3332, 8545), (3418, 8330), (4165, 6836)]