20712930

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{1861}}^1$

素因数の和:1931

約数の個数: 64

約数和(自身を含む): 57915648

約数和(自身を除く): 37202718

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 53, 70, 105, 106, 159, 210, 265, 318, 371, 530, 742, 795, 1113, 1590, 1855, 1861, 2226, 3710, 3722, 5565, 5583, 9305, 11130, 11166, 13027, 18610, 26054, 27915, 39081, 55830, 65135, 78162, 98633, 130270, 195405, 197266, 295899, 390810, 493165, 591798, 690431, 986330, 1380862, 1479495, 2071293, 2958990, 3452155, 4142586, 6904310, 10356465, 20712930]

約数ペア:

[(1, 20712930), (2, 10356465), (3, 6904310), (5, 4142586), (6, 3452155), (7, 2958990), (10, 2071293), (14, 1479495), (15, 1380862), (21, 986330), (30, 690431), (35, 591798), (42, 493165), (53, 390810), (70, 295899), (105, 197266), (106, 195405), (159, 130270), (210, 98633), (265, 78162), (318, 65135), (371, 55830), (530, 39081), (742, 27915), (795, 26054), (1113, 18610), (1590, 13027), (1855, 11166), (1861, 11130), (2226, 9305), (3710, 5583), (3722, 5565)]