20972430

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{7517}}^1$

素因数の和:7561

約数の個数: 48

約数和(自身を含む): 56294784

約数和(自身を除く): 35322354

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 31, 45, 62, 90, 93, 155, 186, 279, 310, 465, 558, 930, 1395, 2790, 7517, 15034, 22551, 37585, 45102, 67653, 75170, 112755, 135306, 225510, 233027, 338265, 466054, 676530, 699081, 1165135, 1398162, 2097243, 2330270, 3495405, 4194486, 6990810, 10486215, 20972430]

約数ペア:

[(1, 20972430), (2, 10486215), (3, 6990810), (5, 4194486), (6, 3495405), (9, 2330270), (10, 2097243), (15, 1398162), (18, 1165135), (30, 699081), (31, 676530), (45, 466054), (62, 338265), (90, 233027), (93, 225510), (155, 135306), (186, 112755), (279, 75170), (310, 67653), (465, 45102), (558, 37585), (930, 22551), (1395, 15034), (2790, 7517)]