18700640

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{283}}^1$

素因数の和:364

約数の個数: 96

約数和(自身を含む): 51528960

約数和(自身を除く): 32828320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 59, 70, 80, 112, 118, 140, 160, 224, 236, 280, 283, 295, 413, 472, 560, 566, 590, 826, 944, 1120, 1132, 1180, 1415, 1652, 1888, 1981, 2065, 2264, 2360, 2830, 3304, 3962, 4130, 4528, 4720, 5660, 6608, 7924, 8260, 9056, 9440, 9905, 11320, 13216, 15848, 16520, 16697, 19810, 22640, 31696, 33040, 33394, 39620, 45280, 63392, 66080, 66788, 79240, 83485, 116879, 133576, 158480, 166970, 233758, 267152, 316960, 333940, 467516, 534304, 584395, 667880, 935032, 1168790, 1335760, 1870064, 2337580, 2671520, 3740128, 4675160, 9350320, 18700640]

約数ペア:

[(1, 18700640), (2, 9350320), (4, 4675160), (5, 3740128), (7, 2671520), (8, 2337580), (10, 1870064), (14, 1335760), (16, 1168790), (20, 935032), (28, 667880), (32, 584395), (35, 534304), (40, 467516), (56, 333940), (59, 316960), (70, 267152), (80, 233758), (112, 166970), (118, 158480), (140, 133576), (160, 116879), (224, 83485), (236, 79240), (280, 66788), (283, 66080), (295, 63392), (413, 45280), (472, 39620), (560, 33394), (566, 33040), (590, 31696), (826, 22640), (944, 19810), (1120, 16697), (1132, 16520), (1180, 15848), (1415, 13216), (1652, 11320), (1888, 9905), (1981, 9440), (2065, 9056), (2264, 8260), (2360, 7924), (2830, 6608), (3304, 5660), (3962, 4720), (4130, 4528)]