20451060

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{16231}}^1$

素因数の和:16253

約数の個数: 72

約数和(自身を含む): 70901376

約数和(自身を除く): 50450316

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 16231, 32462, 48693, 64924, 81155, 97386, 113617, 146079, 162310, 194772, 227234, 243465, 292158, 324620, 340851, 454468, 486930, 568085, 584316, 681702, 730395, 973860, 1022553, 1136170, 1363404, 1460790, 1704255, 2045106, 2272340, 2921580, 3408510, 4090212, 5112765, 6817020, 10225530, 20451060]

約数ペア:

[(1, 20451060), (2, 10225530), (3, 6817020), (4, 5112765), (5, 4090212), (6, 3408510), (7, 2921580), (9, 2272340), (10, 2045106), (12, 1704255), (14, 1460790), (15, 1363404), (18, 1136170), (20, 1022553), (21, 973860), (28, 730395), (30, 681702), (35, 584316), (36, 568085), (42, 486930), (45, 454468), (60, 340851), (63, 324620), (70, 292158), (84, 243465), (90, 227234), (105, 194772), (126, 162310), (140, 146079), (180, 113617), (210, 97386), (252, 81155), (315, 64924), (420, 48693), (630, 32462), (1260, 16231)]