64987695

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{2621}}^1$

素因数の和:2680

約数の個数: 48

約数和(自身を含む): 122709600

約数和(自身を除く): 57721905

約数列:

[1, 3, 5, 9, 15, 19, 29, 45, 57, 87, 95, 145, 171, 261, 285, 435, 551, 855, 1305, 1653, 2621, 2755, 4959, 7863, 8265, 13105, 23589, 24795, 39315, 49799, 76009, 117945, 149397, 228027, 248995, 380045, 448191, 684081, 746985, 1140135, 1444171, 2240955, 3420405, 4332513, 7220855, 12997539, 21662565, 64987695]

約数ペア:

[(1, 64987695), (3, 21662565), (5, 12997539), (9, 7220855), (15, 4332513), (19, 3420405), (29, 2240955), (45, 1444171), (57, 1140135), (87, 746985), (95, 684081), (145, 448191), (171, 380045), (261, 248995), (285, 228027), (435, 149397), (551, 117945), (855, 76009), (1305, 49799), (1653, 39315), (2621, 24795), (2755, 23589), (4959, 13105), (7863, 8265)]