19641700

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{521}}^1$

素因数の和:577

約数の個数: 72

約数和(自身を含む): 47575080

約数和(自身を除く): 27933380

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, 521, 580, 650, 725, 754, 1042, 1300, 1450, 1508, 1885, 2084, 2605, 2900, 3770, 5210, 6773, 7540, 9425, 10420, 13025, 13546, 15109, 18850, 26050, 27092, 30218, 33865, 37700, 52100, 60436, 67730, 75545, 135460, 151090, 169325, 196417, 302180, 338650, 377725, 392834, 677300, 755450, 785668, 982085, 1510900, 1964170, 3928340, 4910425, 9820850, 19641700]

約数ペア:

[(1, 19641700), (2, 9820850), (4, 4910425), (5, 3928340), (10, 1964170), (13, 1510900), (20, 982085), (25, 785668), (26, 755450), (29, 677300), (50, 392834), (52, 377725), (58, 338650), (65, 302180), (100, 196417), (116, 169325), (130, 151090), (145, 135460), (260, 75545), (290, 67730), (325, 60436), (377, 52100), (521, 37700), (580, 33865), (650, 30218), (725, 27092), (754, 26050), (1042, 18850), (1300, 15109), (1450, 13546), (1508, 13025), (1885, 10420), (2084, 9425), (2605, 7540), (2900, 6773), (3770, 5210)]