81945950

素因数分解:

$2^1\times 5^2\times {\mathrm{17}}^2\times {\mathrm{53}}^1\times {\mathrm{107}}^1$

素因数の和:206

約数の個数: 72

約数和(自身を含む): 166509432

約数和(自身を除く): 84563482

約数列:

[1, 2, 5, 10, 17, 25, 34, 50, 53, 85, 106, 107, 170, 214, 265, 289, 425, 530, 535, 578, 850, 901, 1070, 1325, 1445, 1802, 1819, 2650, 2675, 2890, 3638, 4505, 5350, 5671, 7225, 9010, 9095, 11342, 14450, 15317, 18190, 22525, 28355, 30634, 30923, 45050, 45475, 56710, 61846, 76585, 90950, 96407, 141775, 153170, 154615, 192814, 283550, 309230, 382925, 482035, 765850, 773075, 964070, 1546150, 1638919, 2410175, 3277838, 4820350, 8194595, 16389190, 40972975, 81945950]

約数ペア:

[(1, 81945950), (2, 40972975), (5, 16389190), (10, 8194595), (17, 4820350), (25, 3277838), (34, 2410175), (50, 1638919), (53, 1546150), (85, 964070), (106, 773075), (107, 765850), (170, 482035), (214, 382925), (265, 309230), (289, 283550), (425, 192814), (530, 154615), (535, 153170), (578, 141775), (850, 96407), (901, 90950), (1070, 76585), (1325, 61846), (1445, 56710), (1802, 45475), (1819, 45050), (2650, 30923), (2675, 30634), (2890, 28355), (3638, 22525), (4505, 18190), (5350, 15317), (5671, 14450), (7225, 11342), (9010, 9095)]