128415780

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{26423}}^1$

素因数の和:26447

約数の個数: 72

約数和(自身を含む): 403970112

約数和(自身を除く): 275554332

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 243, 270, 324, 405, 486, 540, 810, 972, 1215, 1620, 2430, 4860, 26423, 52846, 79269, 105692, 132115, 158538, 237807, 264230, 317076, 396345, 475614, 528460, 713421, 792690, 951228, 1189035, 1426842, 1585380, 2140263, 2378070, 2853684, 3567105, 4280526, 4756140, 6420789, 7134210, 8561052, 10701315, 12841578, 14268420, 21402630, 25683156, 32103945, 42805260, 64207890, 128415780]

約数ペア:

[(1, 128415780), (2, 64207890), (3, 42805260), (4, 32103945), (5, 25683156), (6, 21402630), (9, 14268420), (10, 12841578), (12, 10701315), (15, 8561052), (18, 7134210), (20, 6420789), (27, 4756140), (30, 4280526), (36, 3567105), (45, 2853684), (54, 2378070), (60, 2140263), (81, 1585380), (90, 1426842), (108, 1189035), (135, 951228), (162, 792690), (180, 713421), (243, 528460), (270, 475614), (324, 396345), (405, 317076), (486, 264230), (540, 237807), (810, 158538), (972, 132115), (1215, 105692), (1620, 79269), (2430, 52846), (4860, 26423)]