127912980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{163991}}^1$

素因数の和:164016

約数の個数: 48

約数和(自身を含む): 385709184

約数和(自身を除く): 257796204

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 163991, 327982, 491973, 655964, 819955, 983946, 1639910, 1967892, 2131883, 2459865, 3279820, 4263766, 4919730, 6395649, 8527532, 9839460, 10659415, 12791298, 21318830, 25582596, 31978245, 42637660, 63956490, 127912980]

約数ペア:

[(1, 127912980), (2, 63956490), (3, 42637660), (4, 31978245), (5, 25582596), (6, 21318830), (10, 12791298), (12, 10659415), (13, 9839460), (15, 8527532), (20, 6395649), (26, 4919730), (30, 4263766), (39, 3279820), (52, 2459865), (60, 2131883), (65, 1967892), (78, 1639910), (130, 983946), (156, 819955), (195, 655964), (260, 491973), (390, 327982), (780, 163991)]