28764230

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1$

素因数の和:245

約数の個数: 64

約数和(自身を含む): 59719680

約数和(自身を除く): 30955450

約数列:

[1, 2, 5, 10, 11, 22, 29, 55, 58, 71, 110, 127, 142, 145, 254, 290, 319, 355, 635, 638, 710, 781, 1270, 1397, 1562, 1595, 2059, 2794, 3190, 3683, 3905, 4118, 6985, 7366, 7810, 9017, 10295, 13970, 18034, 18415, 20590, 22649, 36830, 40513, 45085, 45298, 81026, 90170, 99187, 113245, 198374, 202565, 226490, 261493, 405130, 495935, 522986, 991870, 1307465, 2614930, 2876423, 5752846, 14382115, 28764230]

約数ペア:

[(1, 28764230), (2, 14382115), (5, 5752846), (10, 2876423), (11, 2614930), (22, 1307465), (29, 991870), (55, 522986), (58, 495935), (71, 405130), (110, 261493), (127, 226490), (142, 202565), (145, 198374), (254, 113245), (290, 99187), (319, 90170), (355, 81026), (635, 45298), (638, 45085), (710, 40513), (781, 36830), (1270, 22649), (1397, 20590), (1562, 18415), (1595, 18034), (2059, 13970), (2794, 10295), (3190, 9017), (3683, 7810), (3905, 7366), (4118, 6985)]