31398620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{59}}^2$

素因数の和:179

約数の個数: 72

約数和(自身を含む): 74955888

約数和(自身を除く): 43557268

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 41, 44, 55, 59, 82, 110, 118, 164, 205, 220, 236, 295, 410, 451, 590, 649, 820, 902, 1180, 1298, 1804, 2255, 2419, 2596, 3245, 3481, 4510, 4838, 6490, 6962, 9020, 9676, 12095, 12980, 13924, 17405, 24190, 26609, 34810, 38291, 48380, 53218, 69620, 76582, 106436, 133045, 142721, 153164, 191455, 266090, 285442, 382910, 532180, 570884, 713605, 765820, 1427210, 1569931, 2854420, 3139862, 6279724, 7849655, 15699310, 31398620]

約数ペア:

[(1, 31398620), (2, 15699310), (4, 7849655), (5, 6279724), (10, 3139862), (11, 2854420), (20, 1569931), (22, 1427210), (41, 765820), (44, 713605), (55, 570884), (59, 532180), (82, 382910), (110, 285442), (118, 266090), (164, 191455), (205, 153164), (220, 142721), (236, 133045), (295, 106436), (410, 76582), (451, 69620), (590, 53218), (649, 48380), (820, 38291), (902, 34810), (1180, 26609), (1298, 24190), (1804, 17405), (2255, 13924), (2419, 12980), (2596, 12095), (3245, 9676), (3481, 9020), (4510, 6962), (4838, 6490)]