161561540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{67883}}^1$

素因数の和:67916

約数の個数: 48

約数和(自身を含む): 410562432

約数和(自身を除く): 249000892

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 68, 70, 85, 119, 140, 170, 238, 340, 476, 595, 1190, 2380, 67883, 135766, 271532, 339415, 475181, 678830, 950362, 1154011, 1357660, 1900724, 2308022, 2375905, 4616044, 4751810, 5770055, 8078077, 9503620, 11540110, 16156154, 23080220, 32312308, 40390385, 80780770, 161561540]

約数ペア:

[(1, 161561540), (2, 80780770), (4, 40390385), (5, 32312308), (7, 23080220), (10, 16156154), (14, 11540110), (17, 9503620), (20, 8078077), (28, 5770055), (34, 4751810), (35, 4616044), (68, 2375905), (70, 2308022), (85, 1900724), (119, 1357660), (140, 1154011), (170, 950362), (238, 678830), (340, 475181), (476, 339415), (595, 271532), (1190, 135766), (2380, 67883)]