28835828

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{239}}^1$

素因数の和:420

約数の個数: 48

約数和(自身を含む): 60211200

約数和(自身を除く): 31375372

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 139, 217, 239, 278, 434, 478, 556, 868, 956, 973, 1673, 1946, 3346, 3892, 4309, 6692, 7409, 8618, 14818, 17236, 29636, 30163, 33221, 51863, 60326, 66442, 103726, 120652, 132884, 207452, 232547, 465094, 930188, 1029851, 2059702, 4119404, 7208957, 14417914, 28835828]

約数ペア:

[(1, 28835828), (2, 14417914), (4, 7208957), (7, 4119404), (14, 2059702), (28, 1029851), (31, 930188), (62, 465094), (124, 232547), (139, 207452), (217, 132884), (239, 120652), (278, 103726), (434, 66442), (478, 60326), (556, 51863), (868, 33221), (956, 30163), (973, 29636), (1673, 17236), (1946, 14818), (3346, 8618), (3892, 7409), (4309, 6692)]