18557420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1$

素因数の和:171

約数の個数: 96

約数和(自身を含む): 47246976

約数和(自身を除く): 28689556

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 41, 53, 61, 70, 82, 106, 122, 140, 164, 205, 212, 244, 265, 287, 305, 371, 410, 427, 530, 574, 610, 742, 820, 854, 1060, 1148, 1220, 1435, 1484, 1708, 1855, 2135, 2173, 2501, 2870, 3233, 3710, 4270, 4346, 5002, 5740, 6466, 7420, 8540, 8692, 10004, 10865, 12505, 12932, 15211, 16165, 17507, 21730, 22631, 25010, 30422, 32330, 35014, 43460, 45262, 50020, 60844, 64660, 70028, 76055, 87535, 90524, 113155, 132553, 152110, 175070, 226310, 265106, 304220, 350140, 452620, 530212, 662765, 927871, 1325530, 1855742, 2651060, 3711484, 4639355, 9278710, 18557420]

約数ペア:

[(1, 18557420), (2, 9278710), (4, 4639355), (5, 3711484), (7, 2651060), (10, 1855742), (14, 1325530), (20, 927871), (28, 662765), (35, 530212), (41, 452620), (53, 350140), (61, 304220), (70, 265106), (82, 226310), (106, 175070), (122, 152110), (140, 132553), (164, 113155), (205, 90524), (212, 87535), (244, 76055), (265, 70028), (287, 64660), (305, 60844), (371, 50020), (410, 45262), (427, 43460), (530, 35014), (574, 32330), (610, 30422), (742, 25010), (820, 22631), (854, 21730), (1060, 17507), (1148, 16165), (1220, 15211), (1435, 12932), (1484, 12505), (1708, 10865), (1855, 10004), (2135, 8692), (2173, 8540), (2501, 7420), (2870, 6466), (3233, 5740), (3710, 5002), (4270, 4346)]