199520320

素因数分解:

$2^6\times 5^1\times {\mathrm{421}}^1\times {\mathrm{1481}}^1$

素因数の和:1919

約数の個数: 56

約数和(自身を含む): 476557848

約数和(自身を除く): 277037528

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 421, 842, 1481, 1684, 2105, 2962, 3368, 4210, 5924, 6736, 7405, 8420, 11848, 13472, 14810, 16840, 23696, 26944, 29620, 33680, 47392, 59240, 67360, 94784, 118480, 134720, 236960, 473920, 623501, 1247002, 2494004, 3117505, 4988008, 6235010, 9976016, 12470020, 19952032, 24940040, 39904064, 49880080, 99760160, 199520320]

約数ペア:

[(1, 199520320), (2, 99760160), (4, 49880080), (5, 39904064), (8, 24940040), (10, 19952032), (16, 12470020), (20, 9976016), (32, 6235010), (40, 4988008), (64, 3117505), (80, 2494004), (160, 1247002), (320, 623501), (421, 473920), (842, 236960), (1481, 134720), (1684, 118480), (2105, 94784), (2962, 67360), (3368, 59240), (4210, 47392), (5924, 33680), (6736, 29620), (7405, 26944), (8420, 23696), (11848, 16840), (13472, 14810)]