256537648

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{6547}}^1$

素因数の和:6665

約数の個数: 40

約数和(自身を含む): 519649280

約数和(自身を除く): 263111632

約数列:

[1, 2, 4, 8, 16, 31, 62, 79, 124, 158, 248, 316, 496, 632, 1264, 2449, 4898, 6547, 9796, 13094, 19592, 26188, 39184, 52376, 104752, 202957, 405914, 517213, 811828, 1034426, 1623656, 2068852, 3247312, 4137704, 8275408, 16033603, 32067206, 64134412, 128268824, 256537648]

約数ペア:

[(1, 256537648), (2, 128268824), (4, 64134412), (8, 32067206), (16, 16033603), (31, 8275408), (62, 4137704), (79, 3247312), (124, 2068852), (158, 1623656), (248, 1034426), (316, 811828), (496, 517213), (632, 405914), (1264, 202957), (2449, 104752), (4898, 52376), (6547, 39184), (9796, 26188), (13094, 19592)]