81298100

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{2719}}^1$

素因数の和:2769

約数の個数: 72

約数和(自身を含む): 198320640

約数和(自身を除く): 117022540

約数列:

[1, 2, 4, 5, 10, 13, 20, 23, 25, 26, 46, 50, 52, 65, 92, 100, 115, 130, 230, 260, 299, 325, 460, 575, 598, 650, 1150, 1196, 1300, 1495, 2300, 2719, 2990, 5438, 5980, 7475, 10876, 13595, 14950, 27190, 29900, 35347, 54380, 62537, 67975, 70694, 125074, 135950, 141388, 176735, 250148, 271900, 312685, 353470, 625370, 706940, 812981, 883675, 1250740, 1563425, 1625962, 1767350, 3126850, 3251924, 3534700, 4064905, 6253700, 8129810, 16259620, 20324525, 40649050, 81298100]

約数ペア:

[(1, 81298100), (2, 40649050), (4, 20324525), (5, 16259620), (10, 8129810), (13, 6253700), (20, 4064905), (23, 3534700), (25, 3251924), (26, 3126850), (46, 1767350), (50, 1625962), (52, 1563425), (65, 1250740), (92, 883675), (100, 812981), (115, 706940), (130, 625370), (230, 353470), (260, 312685), (299, 271900), (325, 250148), (460, 176735), (575, 141388), (598, 135950), (650, 125074), (1150, 70694), (1196, 67975), (1300, 62537), (1495, 54380), (2300, 35347), (2719, 29900), (2990, 27190), (5438, 14950), (5980, 13595), (7475, 10876)]