18512780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{6473}}^1$

素因数の和:6506

約数の個数: 48

約数和(自身を含む): 45680544

約数和(自身を除く): 27167764

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 130, 143, 220, 260, 286, 572, 715, 1430, 2860, 6473, 12946, 25892, 32365, 64730, 71203, 84149, 129460, 142406, 168298, 284812, 336596, 356015, 420745, 712030, 841490, 925639, 1424060, 1682980, 1851278, 3702556, 4628195, 9256390, 18512780]

約数ペア:

[(1, 18512780), (2, 9256390), (4, 4628195), (5, 3702556), (10, 1851278), (11, 1682980), (13, 1424060), (20, 925639), (22, 841490), (26, 712030), (44, 420745), (52, 356015), (55, 336596), (65, 284812), (110, 168298), (130, 142406), (143, 129460), (220, 84149), (260, 71203), (286, 64730), (572, 32365), (715, 25892), (1430, 12946), (2860, 6473)]