2000643560

素因数分解:

$2^3\times 5^1\times {\mathrm{5309}}^1\times {\mathrm{9421}}^1$

素因数の和:14741

約数の個数: 32

約数和(自身を含む): 4502773800

約数和(自身を除く): 2502130240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5309, 9421, 10618, 18842, 21236, 26545, 37684, 42472, 47105, 53090, 75368, 94210, 106180, 188420, 212360, 376840, 50016089, 100032178, 200064356, 250080445, 400128712, 500160890, 1000321780, 2000643560]

約数ペア:

[(1, 2000643560), (2, 1000321780), (4, 500160890), (5, 400128712), (8, 250080445), (10, 200064356), (20, 100032178), (40, 50016089), (5309, 376840), (9421, 212360), (10618, 188420), (18842, 106180), (21236, 94210), (26545, 75368), (37684, 53090), (42472, 47105)]