61378980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{78691}}^1$

素因数の和:78716

約数の個数: 48

約数和(自身を含む): 185083584

約数和(自身を除く): 123704604

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 78691, 157382, 236073, 314764, 393455, 472146, 786910, 944292, 1022983, 1180365, 1573820, 2045966, 2360730, 3068949, 4091932, 4721460, 5114915, 6137898, 10229830, 12275796, 15344745, 20459660, 30689490, 61378980]

約数ペア:

[(1, 61378980), (2, 30689490), (3, 20459660), (4, 15344745), (5, 12275796), (6, 10229830), (10, 6137898), (12, 5114915), (13, 4721460), (15, 4091932), (20, 3068949), (26, 2360730), (30, 2045966), (39, 1573820), (52, 1180365), (60, 1022983), (65, 944292), (78, 786910), (130, 472146), (156, 393455), (195, 314764), (260, 236073), (390, 157382), (780, 78691)]