205323560

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{6473}}^1$

素因数の和:6558

約数の個数: 64

約数和(自身を含む): 505748880

約数和(自身を除く): 300425320

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 61, 65, 104, 122, 130, 244, 260, 305, 488, 520, 610, 793, 1220, 1586, 2440, 3172, 3965, 6344, 6473, 7930, 12946, 15860, 25892, 31720, 32365, 51784, 64730, 84149, 129460, 168298, 258920, 336596, 394853, 420745, 673192, 789706, 841490, 1579412, 1682980, 1974265, 3158824, 3365960, 3948530, 5133089, 7897060, 10266178, 15794120, 20532356, 25665445, 41064712, 51330890, 102661780, 205323560]

約数ペア:

[(1, 205323560), (2, 102661780), (4, 51330890), (5, 41064712), (8, 25665445), (10, 20532356), (13, 15794120), (20, 10266178), (26, 7897060), (40, 5133089), (52, 3948530), (61, 3365960), (65, 3158824), (104, 1974265), (122, 1682980), (130, 1579412), (244, 841490), (260, 789706), (305, 673192), (488, 420745), (520, 394853), (610, 336596), (793, 258920), (1220, 168298), (1586, 129460), (2440, 84149), (3172, 64730), (3965, 51784), (6344, 32365), (6473, 31720), (7930, 25892), (12946, 15860)]