261244334

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{127}}^1\times {\mathrm{1297}}^1$

素因数の和:1500

約数の個数: 32

約数和(自身を含む): 432638976

約数和(自身を除く): 171394642

約数列:

[1, 2, 13, 26, 61, 122, 127, 254, 793, 1297, 1586, 1651, 2594, 3302, 7747, 15494, 16861, 33722, 79117, 100711, 158234, 164719, 201422, 329438, 1028521, 2057042, 2141347, 4282694, 10047859, 20095718, 130622167, 261244334]

約数ペア:

[(1, 261244334), (2, 130622167), (13, 20095718), (26, 10047859), (61, 4282694), (122, 2141347), (127, 2057042), (254, 1028521), (793, 329438), (1297, 201422), (1586, 164719), (1651, 158234), (2594, 100711), (3302, 79117), (7747, 33722), (15494, 16861)]