61939640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{1409}}^1$

素因数の和:1584

約数の個数: 64

約数和(自身を含む): 160401600

約数和(自身を除く): 98461960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 157, 280, 314, 628, 785, 1099, 1256, 1409, 1570, 2198, 2818, 3140, 4396, 5495, 5636, 6280, 7045, 8792, 9863, 10990, 11272, 14090, 19726, 21980, 28180, 39452, 43960, 49315, 56360, 78904, 98630, 197260, 221213, 394520, 442426, 884852, 1106065, 1548491, 1769704, 2212130, 3096982, 4424260, 6193964, 7742455, 8848520, 12387928, 15484910, 30969820, 61939640]

約数ペア:

[(1, 61939640), (2, 30969820), (4, 15484910), (5, 12387928), (7, 8848520), (8, 7742455), (10, 6193964), (14, 4424260), (20, 3096982), (28, 2212130), (35, 1769704), (40, 1548491), (56, 1106065), (70, 884852), (140, 442426), (157, 394520), (280, 221213), (314, 197260), (628, 98630), (785, 78904), (1099, 56360), (1256, 49315), (1409, 43960), (1570, 39452), (2198, 28180), (2818, 21980), (3140, 19726), (4396, 14090), (5495, 11272), (5636, 10990), (6280, 9863), (7045, 8792)]