1640207872

素因数分解:

$2^9\times {\mathrm{17}}^1\times {\mathrm{188443}}^1$

素因数の和:188478

約数の個数: 40

約数和(自身を含む): 3470007816

約数和(自身を除く): 1829799944

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 128, 136, 256, 272, 512, 544, 1088, 2176, 4352, 8704, 188443, 376886, 753772, 1507544, 3015088, 3203531, 6030176, 6407062, 12060352, 12814124, 24120704, 25628248, 48241408, 51256496, 96482816, 102512992, 205025984, 410051968, 820103936, 1640207872]

約数ペア:

[(1, 1640207872), (2, 820103936), (4, 410051968), (8, 205025984), (16, 102512992), (17, 96482816), (32, 51256496), (34, 48241408), (64, 25628248), (68, 24120704), (128, 12814124), (136, 12060352), (256, 6407062), (272, 6030176), (512, 3203531), (544, 3015088), (1088, 1507544), (2176, 753772), (4352, 376886), (8704, 188443)]