78669940

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{223}}^1\times {\mathrm{569}}^1$

素因数の和:832

約数の個数: 48

約数和(自身を含む): 171601920

約数和(自身を除く): 92931980

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 223, 310, 446, 569, 620, 892, 1115, 1138, 2230, 2276, 2845, 4460, 5690, 6913, 11380, 13826, 17639, 27652, 34565, 35278, 69130, 70556, 88195, 126887, 138260, 176390, 253774, 352780, 507548, 634435, 1268870, 2537740, 3933497, 7866994, 15733988, 19667485, 39334970, 78669940]

約数ペア:

[(1, 78669940), (2, 39334970), (4, 19667485), (5, 15733988), (10, 7866994), (20, 3933497), (31, 2537740), (62, 1268870), (124, 634435), (155, 507548), (223, 352780), (310, 253774), (446, 176390), (569, 138260), (620, 126887), (892, 88195), (1115, 70556), (1138, 69130), (2230, 35278), (2276, 34565), (2845, 27652), (4460, 17639), (5690, 13826), (6913, 11380)]