20235812900

素因数分解:

$2^2\times 5^2\times {\mathrm{43}}^1\times {\mathrm{307}}^1\times {\mathrm{15329}}^1$

素因数の和:15693

約数の個数: 72

約数和(自身を含む): 45082218720

約数和(自身を除く): 24846405820

約数列:

[1, 2, 4, 5, 10, 20, 25, 43, 50, 86, 100, 172, 215, 307, 430, 614, 860, 1075, 1228, 1535, 2150, 3070, 4300, 6140, 7675, 13201, 15329, 15350, 26402, 30658, 30700, 52804, 61316, 66005, 76645, 132010, 153290, 264020, 306580, 330025, 383225, 659147, 660050, 766450, 1318294, 1320100, 1532900, 2636588, 3295735, 4706003, 6591470, 9412006, 13182940, 16478675, 18824012, 23530015, 32957350, 47060030, 65914700, 94120060, 117650075, 202358129, 235300150, 404716258, 470600300, 809432516, 1011790645, 2023581290, 4047162580, 5058953225, 10117906450, 20235812900]

約数ペア:

[(1, 20235812900), (2, 10117906450), (4, 5058953225), (5, 4047162580), (10, 2023581290), (20, 1011790645), (25, 809432516), (43, 470600300), (50, 404716258), (86, 235300150), (100, 202358129), (172, 117650075), (215, 94120060), (307, 65914700), (430, 47060030), (614, 32957350), (860, 23530015), (1075, 18824012), (1228, 16478675), (1535, 13182940), (2150, 9412006), (3070, 6591470), (4300, 4706003), (6140, 3295735), (7675, 2636588), (13201, 1532900), (15329, 1320100), (15350, 1318294), (26402, 766450), (30658, 660050), (30700, 659147), (52804, 383225), (61316, 330025), (66005, 306580), (76645, 264020), (132010, 153290)]