81856460

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{101}}^1\times {\mathrm{827}}^1$

素因数の和:951

約数の個数: 72

約数和(自身を含む): 202187664

約数和(自身を除く): 120331204

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 101, 140, 196, 202, 245, 404, 490, 505, 707, 827, 980, 1010, 1414, 1654, 2020, 2828, 3308, 3535, 4135, 4949, 5789, 7070, 8270, 9898, 11578, 14140, 16540, 19796, 23156, 24745, 28945, 40523, 49490, 57890, 81046, 83527, 98980, 115780, 162092, 167054, 202615, 334108, 405230, 417635, 584689, 810460, 835270, 1169378, 1670540, 2338756, 2923445, 4092823, 5846890, 8185646, 11693780, 16371292, 20464115, 40928230, 81856460]

約数ペア:

[(1, 81856460), (2, 40928230), (4, 20464115), (5, 16371292), (7, 11693780), (10, 8185646), (14, 5846890), (20, 4092823), (28, 2923445), (35, 2338756), (49, 1670540), (70, 1169378), (98, 835270), (101, 810460), (140, 584689), (196, 417635), (202, 405230), (245, 334108), (404, 202615), (490, 167054), (505, 162092), (707, 115780), (827, 98980), (980, 83527), (1010, 81046), (1414, 57890), (1654, 49490), (2020, 40523), (2828, 28945), (3308, 24745), (3535, 23156), (4135, 19796), (4949, 16540), (5789, 14140), (7070, 11578), (8270, 9898)]