20589380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{211}}^1$

素因数の和:285

約数の個数: 96

約数和(自身を含む): 53851392

約数和(自身を除く): 33262012

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 41, 68, 70, 82, 85, 119, 140, 164, 170, 205, 211, 238, 287, 340, 410, 422, 476, 574, 595, 697, 820, 844, 1055, 1148, 1190, 1394, 1435, 1477, 2110, 2380, 2788, 2870, 2954, 3485, 3587, 4220, 4879, 5740, 5908, 6970, 7174, 7385, 8651, 9758, 13940, 14348, 14770, 17302, 17935, 19516, 24395, 25109, 29540, 34604, 35870, 43255, 48790, 50218, 60557, 71740, 86510, 97580, 100436, 121114, 125545, 147067, 173020, 242228, 251090, 294134, 302785, 502180, 588268, 605570, 735335, 1029469, 1211140, 1470670, 2058938, 2941340, 4117876, 5147345, 10294690, 20589380]

約数ペア:

[(1, 20589380), (2, 10294690), (4, 5147345), (5, 4117876), (7, 2941340), (10, 2058938), (14, 1470670), (17, 1211140), (20, 1029469), (28, 735335), (34, 605570), (35, 588268), (41, 502180), (68, 302785), (70, 294134), (82, 251090), (85, 242228), (119, 173020), (140, 147067), (164, 125545), (170, 121114), (205, 100436), (211, 97580), (238, 86510), (287, 71740), (340, 60557), (410, 50218), (422, 48790), (476, 43255), (574, 35870), (595, 34604), (697, 29540), (820, 25109), (844, 24395), (1055, 19516), (1148, 17935), (1190, 17302), (1394, 14770), (1435, 14348), (1477, 13940), (2110, 9758), (2380, 8651), (2788, 7385), (2870, 7174), (2954, 6970), (3485, 5908), (3587, 5740), (4220, 4879)]