18564650

素因数分解:

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

素因数の和:77

約数の個数: 36

約数和(自身を含む): 37407762

約数和(自身を除く): 18843112

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 169, 325, 338, 650, 845, 1690, 2197, 4225, 4394, 8450, 10985, 21970, 28561, 54925, 57122, 109850, 142805, 285610, 371293, 714025, 742586, 1428050, 1856465, 3712930, 9282325, 18564650]

約数ペア:

[(1, 18564650), (2, 9282325), (5, 3712930), (10, 1856465), (13, 1428050), (25, 742586), (26, 714025), (50, 371293), (65, 285610), (130, 142805), (169, 109850), (325, 57122), (338, 54925), (650, 28561), (845, 21970), (1690, 10985), (2197, 8450), (4225, 4394)]