397431356

素因数分解:

$2^2\times 7^3\times {\mathrm{37}}^1\times {\mathrm{7829}}^1$

素因数の和:7891

約数の個数: 48

約数和(自身を含む): 833112000

約数和(自身を除く): 435680644

約数列:

[1, 2, 4, 7, 14, 28, 37, 49, 74, 98, 148, 196, 259, 343, 518, 686, 1036, 1372, 1813, 3626, 7252, 7829, 12691, 15658, 25382, 31316, 50764, 54803, 109606, 219212, 289673, 383621, 579346, 767242, 1158692, 1534484, 2027711, 2685347, 4055422, 5370694, 8110844, 10741388, 14193977, 28387954, 56775908, 99357839, 198715678, 397431356]

約数ペア:

[(1, 397431356), (2, 198715678), (4, 99357839), (7, 56775908), (14, 28387954), (28, 14193977), (37, 10741388), (49, 8110844), (74, 5370694), (98, 4055422), (148, 2685347), (196, 2027711), (259, 1534484), (343, 1158692), (518, 767242), (686, 579346), (1036, 383621), (1372, 289673), (1813, 219212), (3626, 109606), (7252, 54803), (7829, 50764), (12691, 31316), (15658, 25382)]