80965640

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{101}}^1\times {\mathrm{409}}^1$

素因数の和:535

約数の個数: 96

約数和(自身を含む): 214536600

約数和(自身を除く): 133570960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 101, 140, 196, 202, 245, 280, 392, 404, 409, 490, 505, 707, 808, 818, 980, 1010, 1414, 1636, 1960, 2020, 2045, 2828, 2863, 3272, 3535, 4040, 4090, 4949, 5656, 5726, 7070, 8180, 9898, 11452, 14140, 14315, 16360, 19796, 20041, 22904, 24745, 28280, 28630, 39592, 40082, 41309, 49490, 57260, 80164, 82618, 98980, 100205, 114520, 160328, 165236, 197960, 200410, 206545, 289163, 330472, 400820, 413090, 578326, 801640, 826180, 1156652, 1445815, 1652360, 2024141, 2313304, 2891630, 4048282, 5783260, 8096564, 10120705, 11566520, 16193128, 20241410, 40482820, 80965640]

約数ペア:

[(1, 80965640), (2, 40482820), (4, 20241410), (5, 16193128), (7, 11566520), (8, 10120705), (10, 8096564), (14, 5783260), (20, 4048282), (28, 2891630), (35, 2313304), (40, 2024141), (49, 1652360), (56, 1445815), (70, 1156652), (98, 826180), (101, 801640), (140, 578326), (196, 413090), (202, 400820), (245, 330472), (280, 289163), (392, 206545), (404, 200410), (409, 197960), (490, 165236), (505, 160328), (707, 114520), (808, 100205), (818, 98980), (980, 82618), (1010, 80164), (1414, 57260), (1636, 49490), (1960, 41309), (2020, 40082), (2045, 39592), (2828, 28630), (2863, 28280), (3272, 24745), (3535, 22904), (4040, 20041), (4090, 19796), (4949, 16360), (5656, 14315), (5726, 14140), (7070, 11452), (8180, 9898)]