158386180

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{101}}^1\times {\mathrm{881}}^1$

素因数の和:1080

約数の個数: 48

約数和(自身を含む): 340063920

約数和(自身を除く): 181677740

約数列:

[1, 2, 4, 5, 10, 20, 89, 101, 178, 202, 356, 404, 445, 505, 881, 890, 1010, 1762, 1780, 2020, 3524, 4405, 8810, 8989, 17620, 17978, 35956, 44945, 78409, 88981, 89890, 156818, 177962, 179780, 313636, 355924, 392045, 444905, 784090, 889810, 1568180, 1779620, 7919309, 15838618, 31677236, 39596545, 79193090, 158386180]

約数ペア:

[(1, 158386180), (2, 79193090), (4, 39596545), (5, 31677236), (10, 15838618), (20, 7919309), (89, 1779620), (101, 1568180), (178, 889810), (202, 784090), (356, 444905), (404, 392045), (445, 355924), (505, 313636), (881, 179780), (890, 177962), (1010, 156818), (1762, 89890), (1780, 88981), (2020, 78409), (3524, 44945), (4405, 35956), (8810, 17978), (8989, 17620)]