18362500

素因数分解:

$2^2\times 5^5\times {\mathrm{13}}^1\times {\mathrm{113}}^1$

素因数の和:155

約数の個数: 72

約数和(自身を含む): 43637832

約数和(自身を除く): 25275332

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 113, 125, 130, 226, 250, 260, 325, 452, 500, 565, 625, 650, 1130, 1250, 1300, 1469, 1625, 2260, 2500, 2825, 2938, 3125, 3250, 5650, 5876, 6250, 6500, 7345, 8125, 11300, 12500, 14125, 14690, 16250, 28250, 29380, 32500, 36725, 40625, 56500, 70625, 73450, 81250, 141250, 146900, 162500, 183625, 282500, 353125, 367250, 706250, 734500, 918125, 1412500, 1836250, 3672500, 4590625, 9181250, 18362500]

約数ペア:

[(1, 18362500), (2, 9181250), (4, 4590625), (5, 3672500), (10, 1836250), (13, 1412500), (20, 918125), (25, 734500), (26, 706250), (50, 367250), (52, 353125), (65, 282500), (100, 183625), (113, 162500), (125, 146900), (130, 141250), (226, 81250), (250, 73450), (260, 70625), (325, 56500), (452, 40625), (500, 36725), (565, 32500), (625, 29380), (650, 28250), (1130, 16250), (1250, 14690), (1300, 14125), (1469, 12500), (1625, 11300), (2260, 8125), (2500, 7345), (2825, 6500), (2938, 6250), (3125, 5876), (3250, 5650)]