129990320

素因数分解:

$2^4\times 5^1\times {\mathrm{331}}^1\times {\mathrm{4909}}^1$

素因数の和:5253

約数の個数: 40

約数和(自身を含む): 303202320

約数和(自身を除く): 173212000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 331, 662, 1324, 1655, 2648, 3310, 4909, 5296, 6620, 9818, 13240, 19636, 24545, 26480, 39272, 49090, 78544, 98180, 196360, 392720, 1624879, 3249758, 6499516, 8124395, 12999032, 16248790, 25998064, 32497580, 64995160, 129990320]

約数ペア:

[(1, 129990320), (2, 64995160), (4, 32497580), (5, 25998064), (8, 16248790), (10, 12999032), (16, 8124395), (20, 6499516), (40, 3249758), (80, 1624879), (331, 392720), (662, 196360), (1324, 98180), (1655, 78544), (2648, 49090), (3310, 39272), (4909, 26480), (5296, 24545), (6620, 19636), (9818, 13240)]