253668350

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{12589}}^1$

素因数の和:12645

約数の個数: 48

約数和(自身を含む): 524549760

約数和(自身を除く): 270881410

約数列:

[1, 2, 5, 10, 13, 25, 26, 31, 50, 62, 65, 130, 155, 310, 325, 403, 650, 775, 806, 1550, 2015, 4030, 10075, 12589, 20150, 25178, 62945, 125890, 163657, 314725, 327314, 390259, 629450, 780518, 818285, 1636570, 1951295, 3902590, 4091425, 5073367, 8182850, 9756475, 10146734, 19512950, 25366835, 50733670, 126834175, 253668350]

約数ペア:

[(1, 253668350), (2, 126834175), (5, 50733670), (10, 25366835), (13, 19512950), (25, 10146734), (26, 9756475), (31, 8182850), (50, 5073367), (62, 4091425), (65, 3902590), (130, 1951295), (155, 1636570), (310, 818285), (325, 780518), (403, 629450), (650, 390259), (775, 327314), (806, 314725), (1550, 163657), (2015, 125890), (4030, 62945), (10075, 25178), (12589, 20150)]