9961250

素因数分解:

$2^1\times 5^4\times {\mathrm{13}}^1\times {\mathrm{613}}^1$

素因数の和:648

約数の個数: 40

約数和(自身を含む): 20140428

約数和(自身を除く): 10179178

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 125, 130, 250, 325, 613, 625, 650, 1226, 1250, 1625, 3065, 3250, 6130, 7969, 8125, 15325, 15938, 16250, 30650, 39845, 76625, 79690, 153250, 199225, 383125, 398450, 766250, 996125, 1992250, 4980625, 9961250]

約数ペア:

[(1, 9961250), (2, 4980625), (5, 1992250), (10, 996125), (13, 766250), (25, 398450), (26, 383125), (50, 199225), (65, 153250), (125, 79690), (130, 76625), (250, 39845), (325, 30650), (613, 16250), (625, 15938), (650, 15325), (1226, 8125), (1250, 7969), (1625, 6130), (3065, 3250)]