71821278

素因数分解:

$2^1\times 3^2\times {\mathrm{61}}^1\times {\mathrm{149}}^1\times {\mathrm{439}}^1$

素因数の和:657

約数の個数: 48

約数和(自身を含む): 159588000

約数和(自身を除く): 87766722

約数列:

[1, 2, 3, 6, 9, 18, 61, 122, 149, 183, 298, 366, 439, 447, 549, 878, 894, 1098, 1317, 1341, 2634, 2682, 3951, 7902, 9089, 18178, 26779, 27267, 53558, 54534, 65411, 80337, 81801, 130822, 160674, 163602, 196233, 241011, 392466, 482022, 588699, 1177398, 3990071, 7980142, 11970213, 23940426, 35910639, 71821278]

約数ペア:

[(1, 71821278), (2, 35910639), (3, 23940426), (6, 11970213), (9, 7980142), (18, 3990071), (61, 1177398), (122, 588699), (149, 482022), (183, 392466), (298, 241011), (366, 196233), (439, 163602), (447, 160674), (549, 130822), (878, 81801), (894, 80337), (1098, 65411), (1317, 54534), (1341, 53558), (2634, 27267), (2682, 26779), (3951, 18178), (7902, 9089)]