2012163980

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{739}}^1\times {\mathrm{1249}}^1$

素因数の和:2106

約数の個数: 48

約数和(自身を含む): 4273500000

約数和(自身を除く): 2261336020

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 739, 1090, 1249, 1478, 2180, 2498, 2956, 3695, 4996, 6245, 7390, 12490, 14780, 24980, 80551, 136141, 161102, 272282, 322204, 402755, 544564, 680705, 805510, 923011, 1361410, 1611020, 1846022, 2722820, 3692044, 4615055, 9230110, 18460220, 100608199, 201216398, 402432796, 503040995, 1006081990, 2012163980]

約数ペア:

[(1, 2012163980), (2, 1006081990), (4, 503040995), (5, 402432796), (10, 201216398), (20, 100608199), (109, 18460220), (218, 9230110), (436, 4615055), (545, 3692044), (739, 2722820), (1090, 1846022), (1249, 1611020), (1478, 1361410), (2180, 923011), (2498, 805510), (2956, 680705), (3695, 544564), (4996, 402755), (6245, 322204), (7390, 272282), (12490, 161102), (14780, 136141), (24980, 80551)]