281978280

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{1663}}^1$

素因数の和:1840

約数の個数: 128

約数和(自身を含む): 946483200

約数和(自身を除く): 664504920

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 108, 120, 135, 157, 180, 216, 270, 314, 360, 471, 540, 628, 785, 942, 1080, 1256, 1413, 1570, 1663, 1884, 2355, 2826, 3140, 3326, 3768, 4239, 4710, 4989, 5652, 6280, 6652, 7065, 8315, 8478, 9420, 9978, 11304, 13304, 14130, 14967, 16630, 16956, 18840, 19956, 21195, 24945, 28260, 29934, 33260, 33912, 39912, 42390, 44901, 49890, 56520, 59868, 66520, 74835, 84780, 89802, 99780, 119736, 149670, 169560, 179604, 199560, 224505, 261091, 299340, 359208, 449010, 522182, 598680, 783273, 898020, 1044364, 1305455, 1566546, 1796040, 2088728, 2349819, 2610910, 3133092, 3916365, 4699638, 5221820, 6266184, 7049457, 7832730, 9399276, 10443640, 11749095, 14098914, 15665460, 18798552, 23498190, 28197828, 31330920, 35247285, 46996380, 56395656, 70494570, 93992760, 140989140, 281978280]

約数ペア:

[(1, 281978280), (2, 140989140), (3, 93992760), (4, 70494570), (5, 56395656), (6, 46996380), (8, 35247285), (9, 31330920), (10, 28197828), (12, 23498190), (15, 18798552), (18, 15665460), (20, 14098914), (24, 11749095), (27, 10443640), (30, 9399276), (36, 7832730), (40, 7049457), (45, 6266184), (54, 5221820), (60, 4699638), (72, 3916365), (90, 3133092), (108, 2610910), (120, 2349819), (135, 2088728), (157, 1796040), (180, 1566546), (216, 1305455), (270, 1044364), (314, 898020), (360, 783273), (471, 598680), (540, 522182), (628, 449010), (785, 359208), (942, 299340), (1080, 261091), (1256, 224505), (1413, 199560), (1570, 179604), (1663, 169560), (1884, 149670), (2355, 119736), (2826, 99780), (3140, 89802), (3326, 84780), (3768, 74835), (4239, 66520), (4710, 59868), (4989, 56520), (5652, 49890), (6280, 44901), (6652, 42390), (7065, 39912), (8315, 33912), (8478, 33260), (9420, 29934), (9978, 28260), (11304, 24945), (13304, 21195), (14130, 19956), (14967, 18840), (16630, 16956)]