20538210

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{523}}^1$

素因数の和:568

約数の個数: 128

約数和(自身を含む): 65193984

約数和(自身を除く): 44655774

約数列:

[1, 2, 3, 5, 6, 7, 10, 11, 14, 15, 17, 21, 22, 30, 33, 34, 35, 42, 51, 55, 66, 70, 77, 85, 102, 105, 110, 119, 154, 165, 170, 187, 210, 231, 238, 255, 330, 357, 374, 385, 462, 510, 523, 561, 595, 714, 770, 935, 1046, 1122, 1155, 1190, 1309, 1569, 1785, 1870, 2310, 2615, 2618, 2805, 3138, 3570, 3661, 3927, 5230, 5610, 5753, 6545, 7322, 7845, 7854, 8891, 10983, 11506, 13090, 15690, 17259, 17782, 18305, 19635, 21966, 26673, 28765, 34518, 36610, 39270, 40271, 44455, 53346, 54915, 57530, 62237, 80542, 86295, 88910, 97801, 109830, 120813, 124474, 133365, 172590, 186711, 195602, 201355, 241626, 266730, 293403, 311185, 373422, 402710, 489005, 586806, 604065, 622370, 684607, 933555, 978010, 1208130, 1369214, 1467015, 1867110, 2053821, 2934030, 3423035, 4107642, 6846070, 10269105, 20538210]

約数ペア:

[(1, 20538210), (2, 10269105), (3, 6846070), (5, 4107642), (6, 3423035), (7, 2934030), (10, 2053821), (11, 1867110), (14, 1467015), (15, 1369214), (17, 1208130), (21, 978010), (22, 933555), (30, 684607), (33, 622370), (34, 604065), (35, 586806), (42, 489005), (51, 402710), (55, 373422), (66, 311185), (70, 293403), (77, 266730), (85, 241626), (102, 201355), (105, 195602), (110, 186711), (119, 172590), (154, 133365), (165, 124474), (170, 120813), (187, 109830), (210, 97801), (231, 88910), (238, 86295), (255, 80542), (330, 62237), (357, 57530), (374, 54915), (385, 53346), (462, 44455), (510, 40271), (523, 39270), (561, 36610), (595, 34518), (714, 28765), (770, 26673), (935, 21966), (1046, 19635), (1122, 18305), (1155, 17782), (1190, 17259), (1309, 15690), (1569, 13090), (1785, 11506), (1870, 10983), (2310, 8891), (2615, 7854), (2618, 7845), (2805, 7322), (3138, 6545), (3570, 5753), (3661, 5610), (3927, 5230)]