81355300

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{62581}}^1$

素因数の和:62608

約数の個数: 36

約数和(自身を含む): 190124116

約数和(自身を除く): 108768816

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 62581, 125162, 250324, 312905, 625810, 813553, 1251620, 1564525, 1627106, 3129050, 3254212, 4067765, 6258100, 8135530, 16271060, 20338825, 40677650, 81355300]

約数ペア:

[(1, 81355300), (2, 40677650), (4, 20338825), (5, 16271060), (10, 8135530), (13, 6258100), (20, 4067765), (25, 3254212), (26, 3129050), (50, 1627106), (52, 1564525), (65, 1251620), (100, 813553), (130, 625810), (260, 312905), (325, 250324), (650, 125162), (1300, 62581)]