278826772

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{2311}}^1$

素因数の和:2492

約数の個数: 48

約数和(自身を含む): 580034560

約数和(自身を除く): 301207788

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 139, 217, 278, 434, 556, 868, 973, 1946, 2311, 3892, 4309, 4622, 8618, 9244, 16177, 17236, 30163, 32354, 60326, 64708, 71641, 120652, 143282, 286564, 321229, 501487, 642458, 1002974, 1284916, 2005948, 2248603, 4497206, 8994412, 9958099, 19916198, 39832396, 69706693, 139413386, 278826772]

約数ペア:

[(1, 278826772), (2, 139413386), (4, 69706693), (7, 39832396), (14, 19916198), (28, 9958099), (31, 8994412), (62, 4497206), (124, 2248603), (139, 2005948), (217, 1284916), (278, 1002974), (434, 642458), (556, 501487), (868, 321229), (973, 286564), (1946, 143282), (2311, 120652), (3892, 71641), (4309, 64708), (4622, 60326), (8618, 32354), (9244, 30163), (16177, 17236)]