123555780

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{25423}}^1$

素因数の和:25447

約数の個数: 72

約数和(自身を含む): 388682112

約数和(自身を除く): 265126332

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 243, 270, 324, 405, 486, 540, 810, 972, 1215, 1620, 2430, 4860, 25423, 50846, 76269, 101692, 127115, 152538, 228807, 254230, 305076, 381345, 457614, 508460, 686421, 762690, 915228, 1144035, 1372842, 1525380, 2059263, 2288070, 2745684, 3432105, 4118526, 4576140, 6177789, 6864210, 8237052, 10296315, 12355578, 13728420, 20592630, 24711156, 30888945, 41185260, 61777890, 123555780]

約数ペア:

[(1, 123555780), (2, 61777890), (3, 41185260), (4, 30888945), (5, 24711156), (6, 20592630), (9, 13728420), (10, 12355578), (12, 10296315), (15, 8237052), (18, 6864210), (20, 6177789), (27, 4576140), (30, 4118526), (36, 3432105), (45, 2745684), (54, 2288070), (60, 2059263), (81, 1525380), (90, 1372842), (108, 1144035), (135, 915228), (162, 762690), (180, 686421), (243, 508460), (270, 457614), (324, 381345), (405, 305076), (486, 254230), (540, 228807), (810, 152538), (972, 127115), (1215, 101692), (1620, 76269), (2430, 50846), (4860, 25423)]