289447780

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{727}}^1\times {\mathrm{1171}}^1$

素因数の和:1924

約数の個数: 48

約数和(自身を含む): 645031296

約数和(自身を除く): 355583516

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 727, 1171, 1454, 2342, 2908, 3635, 4684, 5855, 7270, 11710, 12359, 14540, 19907, 23420, 24718, 39814, 49436, 61795, 79628, 99535, 123590, 199070, 247180, 398140, 851317, 1702634, 3405268, 4256585, 8513170, 14472389, 17026340, 28944778, 57889556, 72361945, 144723890, 289447780]

約数ペア:

[(1, 289447780), (2, 144723890), (4, 72361945), (5, 57889556), (10, 28944778), (17, 17026340), (20, 14472389), (34, 8513170), (68, 4256585), (85, 3405268), (170, 1702634), (340, 851317), (727, 398140), (1171, 247180), (1454, 199070), (2342, 123590), (2908, 99535), (3635, 79628), (4684, 61795), (5855, 49436), (7270, 39814), (11710, 24718), (12359, 23420), (14540, 19907)]