20348737460

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{3533}}^1\times {\mathrm{4721}}^1$

素因数の和:8324

約数の個数: 48

約数和(自身を含む): 43454374992

約数和(自身を除く): 23105637532

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 3533, 4721, 7066, 9442, 14132, 17665, 18884, 23605, 35330, 47210, 70660, 94420, 215513, 287981, 431026, 575962, 862052, 1077565, 1151924, 1439905, 2155130, 2879810, 4310260, 5759620, 16679293, 33358586, 66717172, 83396465, 166792930, 333585860, 1017436873, 2034873746, 4069747492, 5087184365, 10174368730, 20348737460]

約数ペア:

[(1, 20348737460), (2, 10174368730), (4, 5087184365), (5, 4069747492), (10, 2034873746), (20, 1017436873), (61, 333585860), (122, 166792930), (244, 83396465), (305, 66717172), (610, 33358586), (1220, 16679293), (3533, 5759620), (4721, 4310260), (7066, 2879810), (9442, 2155130), (14132, 1439905), (17665, 1151924), (18884, 1077565), (23605, 862052), (35330, 575962), (47210, 431026), (70660, 287981), (94420, 215513)]