181738228

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^2\times {\mathrm{37}}^1\times {\mathrm{607}}^1$

素因数の和:689

約数の個数: 72

約数和(自身を含む): 397203968

約数和(自身を除く): 215465740

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 37, 68, 74, 119, 148, 238, 259, 289, 476, 518, 578, 607, 629, 1036, 1156, 1214, 1258, 2023, 2428, 2516, 4046, 4249, 4403, 8092, 8498, 8806, 10319, 10693, 16996, 17612, 20638, 21386, 22459, 41276, 42772, 44918, 72233, 74851, 89836, 144466, 149702, 157213, 175423, 288932, 299404, 314426, 350846, 381803, 628852, 701692, 763606, 1227961, 1527212, 2455922, 2672621, 4911844, 5345242, 6490651, 10690484, 12981302, 25962604, 45434557, 90869114, 181738228]

約数ペア:

[(1, 181738228), (2, 90869114), (4, 45434557), (7, 25962604), (14, 12981302), (17, 10690484), (28, 6490651), (34, 5345242), (37, 4911844), (68, 2672621), (74, 2455922), (119, 1527212), (148, 1227961), (238, 763606), (259, 701692), (289, 628852), (476, 381803), (518, 350846), (578, 314426), (607, 299404), (629, 288932), (1036, 175423), (1156, 157213), (1214, 149702), (1258, 144466), (2023, 89836), (2428, 74851), (2516, 72233), (4046, 44918), (4249, 42772), (4403, 41276), (8092, 22459), (8498, 21386), (8806, 20638), (10319, 17612), (10693, 16996)]