72403240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19891}}^1$

素因数の和:19922

約数の個数: 64

約数和(自身を含む): 200511360

約数和(自身を除く): 128108120

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 182, 260, 280, 364, 455, 520, 728, 910, 1820, 3640, 19891, 39782, 79564, 99455, 139237, 159128, 198910, 258583, 278474, 397820, 517166, 556948, 696185, 795640, 1034332, 1113896, 1292915, 1392370, 1810081, 2068664, 2585830, 2784740, 3620162, 5171660, 5569480, 7240324, 9050405, 10343320, 14480648, 18100810, 36201620, 72403240]

約数ペア:

[(1, 72403240), (2, 36201620), (4, 18100810), (5, 14480648), (7, 10343320), (8, 9050405), (10, 7240324), (13, 5569480), (14, 5171660), (20, 3620162), (26, 2784740), (28, 2585830), (35, 2068664), (40, 1810081), (52, 1392370), (56, 1292915), (65, 1113896), (70, 1034332), (91, 795640), (104, 696185), (130, 556948), (140, 517166), (182, 397820), (260, 278474), (280, 258583), (364, 198910), (455, 159128), (520, 139237), (728, 99455), (910, 79564), (1820, 39782), (3640, 19891)]