64217140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{4049}}^1$

素因数の和:4132

約数の個数: 48

約数和(自身を含む): 147646800

約数和(自身を除く): 83429660

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 61, 65, 122, 130, 244, 260, 305, 610, 793, 1220, 1586, 3172, 3965, 4049, 7930, 8098, 15860, 16196, 20245, 40490, 52637, 80980, 105274, 210548, 246989, 263185, 493978, 526370, 987956, 1052740, 1234945, 2469890, 3210857, 4939780, 6421714, 12843428, 16054285, 32108570, 64217140]

約数ペア:

[(1, 64217140), (2, 32108570), (4, 16054285), (5, 12843428), (10, 6421714), (13, 4939780), (20, 3210857), (26, 2469890), (52, 1234945), (61, 1052740), (65, 987956), (122, 526370), (130, 493978), (244, 263185), (260, 246989), (305, 210548), (610, 105274), (793, 80980), (1220, 52637), (1586, 40490), (3172, 20245), (3965, 16196), (4049, 15860), (7930, 8098)]