145449140

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{1993}}^1$

素因数の和:2132

約数の個数: 48

約数和(自身を含む): 316567440

約数和(自身を除く): 171118300

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 89, 164, 178, 205, 356, 410, 445, 820, 890, 1780, 1993, 3649, 3986, 7298, 7972, 9965, 14596, 18245, 19930, 36490, 39860, 72980, 81713, 163426, 177377, 326852, 354754, 408565, 709508, 817130, 886885, 1634260, 1773770, 3547540, 7272457, 14544914, 29089828, 36362285, 72724570, 145449140]

約数ペア:

[(1, 145449140), (2, 72724570), (4, 36362285), (5, 29089828), (10, 14544914), (20, 7272457), (41, 3547540), (82, 1773770), (89, 1634260), (164, 886885), (178, 817130), (205, 709508), (356, 408565), (410, 354754), (445, 326852), (820, 177377), (890, 163426), (1780, 81713), (1993, 72980), (3649, 39860), (3986, 36490), (7298, 19930), (7972, 18245), (9965, 14596)]