688766280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{163}}^1\times {\mathrm{1531}}^1$

素因数の和:1731

約数の個数: 128

約数和(自身を含む): 2170782720

約数和(自身を除く): 1482016440

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 46, 60, 69, 92, 115, 120, 138, 163, 184, 230, 276, 326, 345, 460, 489, 552, 652, 690, 815, 920, 978, 1304, 1380, 1531, 1630, 1956, 2445, 2760, 3062, 3260, 3749, 3912, 4593, 4890, 6124, 6520, 7498, 7655, 9186, 9780, 11247, 12248, 14996, 15310, 18372, 18745, 19560, 22494, 22965, 29992, 30620, 35213, 36744, 37490, 44988, 45930, 56235, 61240, 70426, 74980, 89976, 91860, 105639, 112470, 140852, 149960, 176065, 183720, 211278, 224940, 249553, 281704, 352130, 422556, 449880, 499106, 528195, 704260, 748659, 845112, 998212, 1056390, 1247765, 1408520, 1497318, 1996424, 2112780, 2495530, 2994636, 3743295, 4225560, 4991060, 5739719, 5989272, 7486590, 9982120, 11479438, 14973180, 17219157, 22958876, 28698595, 29946360, 34438314, 45917752, 57397190, 68876628, 86095785, 114794380, 137753256, 172191570, 229588760, 344383140, 688766280]

約数ペア:

[(1, 688766280), (2, 344383140), (3, 229588760), (4, 172191570), (5, 137753256), (6, 114794380), (8, 86095785), (10, 68876628), (12, 57397190), (15, 45917752), (20, 34438314), (23, 29946360), (24, 28698595), (30, 22958876), (40, 17219157), (46, 14973180), (60, 11479438), (69, 9982120), (92, 7486590), (115, 5989272), (120, 5739719), (138, 4991060), (163, 4225560), (184, 3743295), (230, 2994636), (276, 2495530), (326, 2112780), (345, 1996424), (460, 1497318), (489, 1408520), (552, 1247765), (652, 1056390), (690, 998212), (815, 845112), (920, 748659), (978, 704260), (1304, 528195), (1380, 499106), (1531, 449880), (1630, 422556), (1956, 352130), (2445, 281704), (2760, 249553), (3062, 224940), (3260, 211278), (3749, 183720), (3912, 176065), (4593, 149960), (4890, 140852), (6124, 112470), (6520, 105639), (7498, 91860), (7655, 89976), (9186, 74980), (9780, 70426), (11247, 61240), (12248, 56235), (14996, 45930), (15310, 44988), (18372, 37490), (18745, 36744), (19560, 35213), (22494, 30620), (22965, 29992)]