257517632

素因数分解:

$2^6\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{6397}}^1$

素因数の和:6463

約数の個数: 56

約数和(自身を含む): 555781464

約数和(自身を除く): 298263832

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 37, 64, 68, 74, 136, 148, 272, 296, 544, 592, 629, 1088, 1184, 1258, 2368, 2516, 5032, 6397, 10064, 12794, 20128, 25588, 40256, 51176, 102352, 108749, 204704, 217498, 236689, 409408, 434996, 473378, 869992, 946756, 1739984, 1893512, 3479968, 3787024, 4023713, 6959936, 7574048, 8047426, 15148096, 16094852, 32189704, 64379408, 128758816, 257517632]

約数ペア:

[(1, 257517632), (2, 128758816), (4, 64379408), (8, 32189704), (16, 16094852), (17, 15148096), (32, 8047426), (34, 7574048), (37, 6959936), (64, 4023713), (68, 3787024), (74, 3479968), (136, 1893512), (148, 1739984), (272, 946756), (296, 869992), (544, 473378), (592, 434996), (629, 409408), (1088, 236689), (1184, 217498), (1258, 204704), (2368, 108749), (2516, 102352), (5032, 51176), (6397, 40256), (10064, 25588), (12794, 20128)]