639505100

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{16963}}^1$

素因数の和:17019

約数の個数: 72

約数和(自身を含む): 1546098960

約数和(自身を除く): 906593860

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 29, 50, 52, 58, 65, 100, 116, 130, 145, 260, 290, 325, 377, 580, 650, 725, 754, 1300, 1450, 1508, 1885, 2900, 3770, 7540, 9425, 16963, 18850, 33926, 37700, 67852, 84815, 169630, 220519, 339260, 424075, 441038, 491927, 848150, 882076, 983854, 1102595, 1696300, 1967708, 2205190, 2459635, 4410380, 4919270, 5512975, 6395051, 9838540, 11025950, 12298175, 12790102, 22051900, 24596350, 25580204, 31975255, 49192700, 63950510, 127901020, 159876275, 319752550, 639505100]

約数ペア:

[(1, 639505100), (2, 319752550), (4, 159876275), (5, 127901020), (10, 63950510), (13, 49192700), (20, 31975255), (25, 25580204), (26, 24596350), (29, 22051900), (50, 12790102), (52, 12298175), (58, 11025950), (65, 9838540), (100, 6395051), (116, 5512975), (130, 4919270), (145, 4410380), (260, 2459635), (290, 2205190), (325, 1967708), (377, 1696300), (580, 1102595), (650, 983854), (725, 882076), (754, 848150), (1300, 491927), (1450, 441038), (1508, 424075), (1885, 339260), (2900, 220519), (3770, 169630), (7540, 84815), (9425, 67852), (16963, 37700), (18850, 33926)]