660717760

素因数分解:

$2^6\times 5^1\times {\mathrm{101}}^1\times {\mathrm{20443}}^1$

素因数の和:20561

約数の個数: 56

約数和(自身を含む): 1588989456

約数和(自身を除く): 928271696

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 101, 160, 202, 320, 404, 505, 808, 1010, 1616, 2020, 3232, 4040, 6464, 8080, 16160, 20443, 32320, 40886, 81772, 102215, 163544, 204430, 327088, 408860, 654176, 817720, 1308352, 1635440, 2064743, 3270880, 4129486, 6541760, 8258972, 10323715, 16517944, 20647430, 33035888, 41294860, 66071776, 82589720, 132143552, 165179440, 330358880, 660717760]

約数ペア:

[(1, 660717760), (2, 330358880), (4, 165179440), (5, 132143552), (8, 82589720), (10, 66071776), (16, 41294860), (20, 33035888), (32, 20647430), (40, 16517944), (64, 10323715), (80, 8258972), (101, 6541760), (160, 4129486), (202, 3270880), (320, 2064743), (404, 1635440), (505, 1308352), (808, 817720), (1010, 654176), (1616, 408860), (2020, 327088), (3232, 204430), (4040, 163544), (6464, 102215), (8080, 81772), (16160, 40886), (20443, 32320)]