66204520

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{631}}^1$

素因数の和:746

約数の個数: 64

約数和(自身を含む): 155168640

約数和(自身を除く): 88964120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 61, 86, 122, 172, 215, 244, 305, 344, 430, 488, 610, 631, 860, 1220, 1262, 1720, 2440, 2524, 2623, 3155, 5048, 5246, 6310, 10492, 12620, 13115, 20984, 25240, 26230, 27133, 38491, 52460, 54266, 76982, 104920, 108532, 135665, 153964, 192455, 217064, 271330, 307928, 384910, 542660, 769820, 1085320, 1539640, 1655113, 3310226, 6620452, 8275565, 13240904, 16551130, 33102260, 66204520]

約数ペア:

[(1, 66204520), (2, 33102260), (4, 16551130), (5, 13240904), (8, 8275565), (10, 6620452), (20, 3310226), (40, 1655113), (43, 1539640), (61, 1085320), (86, 769820), (122, 542660), (172, 384910), (215, 307928), (244, 271330), (305, 217064), (344, 192455), (430, 153964), (488, 135665), (610, 108532), (631, 104920), (860, 76982), (1220, 54266), (1262, 52460), (1720, 38491), (2440, 27133), (2524, 26230), (2623, 25240), (3155, 20984), (5048, 13115), (5246, 12620), (6310, 10492)]