20608250

素因数分解:

$2^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{373}}^1$

素因数の和:420

約数の個数: 64

約数和(自身を含む): 44108064

約数和(自身を除く): 23499814

約数列:

[1, 2, 5, 10, 13, 17, 25, 26, 34, 50, 65, 85, 125, 130, 170, 221, 250, 325, 373, 425, 442, 650, 746, 850, 1105, 1625, 1865, 2125, 2210, 3250, 3730, 4250, 4849, 5525, 6341, 9325, 9698, 11050, 12682, 18650, 24245, 27625, 31705, 46625, 48490, 55250, 63410, 82433, 93250, 121225, 158525, 164866, 242450, 317050, 412165, 606125, 792625, 824330, 1212250, 1585250, 2060825, 4121650, 10304125, 20608250]

約数ペア:

[(1, 20608250), (2, 10304125), (5, 4121650), (10, 2060825), (13, 1585250), (17, 1212250), (25, 824330), (26, 792625), (34, 606125), (50, 412165), (65, 317050), (85, 242450), (125, 164866), (130, 158525), (170, 121225), (221, 93250), (250, 82433), (325, 63410), (373, 55250), (425, 48490), (442, 46625), (650, 31705), (746, 27625), (850, 24245), (1105, 18650), (1625, 12682), (1865, 11050), (2125, 9698), (2210, 9325), (3250, 6341), (3730, 5525), (4250, 4849)]