6520540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{809}}^1$

素因数の和:862

約数の個数: 48

約数和(自身を含む): 15240960

約数和(自身を除く): 8720420

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 260, 310, 403, 620, 806, 809, 1612, 1618, 2015, 3236, 4030, 4045, 8060, 8090, 10517, 16180, 21034, 25079, 42068, 50158, 52585, 100316, 105170, 125395, 210340, 250790, 326027, 501580, 652054, 1304108, 1630135, 3260270, 6520540]

約数ペア:

[(1, 6520540), (2, 3260270), (4, 1630135), (5, 1304108), (10, 652054), (13, 501580), (20, 326027), (26, 250790), (31, 210340), (52, 125395), (62, 105170), (65, 100316), (124, 52585), (130, 50158), (155, 42068), (260, 25079), (310, 21034), (403, 16180), (620, 10517), (806, 8090), (809, 8060), (1612, 4045), (1618, 4030), (2015, 3236)]