157088720

素因数分解:

$2^4\times 5^1\times {\mathrm{409}}^1\times {\mathrm{4801}}^1$

素因数の和:5223

約数の個数: 40

約数和(自身を含む): 366200520

約数和(自身を除く): 209111800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 409, 818, 1636, 2045, 3272, 4090, 4801, 6544, 8180, 9602, 16360, 19204, 24005, 32720, 38408, 48010, 76816, 96020, 192040, 384080, 1963609, 3927218, 7854436, 9818045, 15708872, 19636090, 31417744, 39272180, 78544360, 157088720]

約数ペア:

[(1, 157088720), (2, 78544360), (4, 39272180), (5, 31417744), (8, 19636090), (10, 15708872), (16, 9818045), (20, 7854436), (40, 3927218), (80, 1963609), (409, 384080), (818, 192040), (1636, 96020), (2045, 76816), (3272, 48010), (4090, 38408), (4801, 32720), (6544, 24005), (8180, 19204), (9602, 16360)]