320412280

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{233}}^1\times {\mathrm{1109}}^1$

素因数の和:1384

約数の個数: 64

約数和(自身を含む): 748051200

約数和(自身を除く): 427638920

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 233, 248, 310, 466, 620, 932, 1109, 1165, 1240, 1864, 2218, 2330, 4436, 4660, 5545, 7223, 8872, 9320, 11090, 14446, 22180, 28892, 34379, 36115, 44360, 57784, 68758, 72230, 137516, 144460, 171895, 258397, 275032, 288920, 343790, 516794, 687580, 1033588, 1291985, 1375160, 2067176, 2583970, 5167940, 8010307, 10335880, 16020614, 32041228, 40051535, 64082456, 80103070, 160206140, 320412280]

約数ペア:

[(1, 320412280), (2, 160206140), (4, 80103070), (5, 64082456), (8, 40051535), (10, 32041228), (20, 16020614), (31, 10335880), (40, 8010307), (62, 5167940), (124, 2583970), (155, 2067176), (233, 1375160), (248, 1291985), (310, 1033588), (466, 687580), (620, 516794), (932, 343790), (1109, 288920), (1165, 275032), (1240, 258397), (1864, 171895), (2218, 144460), (2330, 137516), (4436, 72230), (4660, 68758), (5545, 57784), (7223, 44360), (8872, 36115), (9320, 34379), (11090, 28892), (14446, 22180)]