18465436090

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{643}}^1\times {\mathrm{787}}^1$

素因数の和:1567

約数の個数: 64

約数和(自身を含む): 34528394880

約数和(自身を除く): 16062958790

約数列:

[1, 2, 5, 10, 41, 82, 89, 178, 205, 410, 445, 643, 787, 890, 1286, 1574, 3215, 3649, 3935, 6430, 7298, 7870, 18245, 26363, 32267, 36490, 52726, 57227, 64534, 70043, 114454, 131815, 140086, 161335, 263630, 286135, 322670, 350215, 506041, 572270, 700430, 1012082, 2346307, 2530205, 2871763, 4692614, 5060410, 5743526, 11731535, 14358815, 20747681, 23463070, 28717630, 41495362, 45037649, 90075298, 103738405, 207476810, 225188245, 450376490, 1846543609, 3693087218, 9232718045, 18465436090]

約数ペア:

[(1, 18465436090), (2, 9232718045), (5, 3693087218), (10, 1846543609), (41, 450376490), (82, 225188245), (89, 207476810), (178, 103738405), (205, 90075298), (410, 45037649), (445, 41495362), (643, 28717630), (787, 23463070), (890, 20747681), (1286, 14358815), (1574, 11731535), (3215, 5743526), (3649, 5060410), (3935, 4692614), (6430, 2871763), (7298, 2530205), (7870, 2346307), (18245, 1012082), (26363, 700430), (32267, 572270), (36490, 506041), (52726, 350215), (57227, 322670), (64534, 286135), (70043, 263630), (114454, 161335), (131815, 140086)]