256904316

素因数分解:

$2^2\times 3^2\times {\mathrm{31}}^1\times {\mathrm{211}}^1\times {\mathrm{1091}}^1$

素因数の和:1343

約数の個数: 72

約数和(自身を含む): 674139648

約数和(自身を除く): 417235332

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 31, 36, 62, 93, 124, 186, 211, 279, 372, 422, 558, 633, 844, 1091, 1116, 1266, 1899, 2182, 2532, 3273, 3798, 4364, 6541, 6546, 7596, 9819, 13082, 13092, 19623, 19638, 26164, 33821, 39246, 39276, 58869, 67642, 78492, 101463, 117738, 135284, 202926, 230201, 235476, 304389, 405852, 460402, 608778, 690603, 920804, 1217556, 1381206, 2071809, 2762412, 4143618, 7136231, 8287236, 14272462, 21408693, 28544924, 42817386, 64226079, 85634772, 128452158, 256904316]

約数ペア:

[(1, 256904316), (2, 128452158), (3, 85634772), (4, 64226079), (6, 42817386), (9, 28544924), (12, 21408693), (18, 14272462), (31, 8287236), (36, 7136231), (62, 4143618), (93, 2762412), (124, 2071809), (186, 1381206), (211, 1217556), (279, 920804), (372, 690603), (422, 608778), (558, 460402), (633, 405852), (844, 304389), (1091, 235476), (1116, 230201), (1266, 202926), (1899, 135284), (2182, 117738), (2532, 101463), (3273, 78492), (3798, 67642), (4364, 58869), (6541, 39276), (6546, 39246), (7596, 33821), (9819, 26164), (13082, 19638), (13092, 19623)]