19888560

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{1201}}^1$

素因数の和:1243

約数の個数: 120

約数和(自身を含む): 69754464

約数和(自身を除く): 49865904

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 23, 24, 30, 36, 40, 45, 46, 48, 60, 69, 72, 80, 90, 92, 115, 120, 138, 144, 180, 184, 207, 230, 240, 276, 345, 360, 368, 414, 460, 552, 690, 720, 828, 920, 1035, 1104, 1201, 1380, 1656, 1840, 2070, 2402, 2760, 3312, 3603, 4140, 4804, 5520, 6005, 7206, 8280, 9608, 10809, 12010, 14412, 16560, 18015, 19216, 21618, 24020, 27623, 28824, 36030, 43236, 48040, 54045, 55246, 57648, 72060, 82869, 86472, 96080, 108090, 110492, 138115, 144120, 165738, 172944, 216180, 220984, 248607, 276230, 288240, 331476, 414345, 432360, 441968, 497214, 552460, 662952, 828690, 864720, 994428, 1104920, 1243035, 1325904, 1657380, 1988856, 2209840, 2486070, 3314760, 3977712, 4972140, 6629520, 9944280, 19888560]

約数ペア:

[(1, 19888560), (2, 9944280), (3, 6629520), (4, 4972140), (5, 3977712), (6, 3314760), (8, 2486070), (9, 2209840), (10, 1988856), (12, 1657380), (15, 1325904), (16, 1243035), (18, 1104920), (20, 994428), (23, 864720), (24, 828690), (30, 662952), (36, 552460), (40, 497214), (45, 441968), (46, 432360), (48, 414345), (60, 331476), (69, 288240), (72, 276230), (80, 248607), (90, 220984), (92, 216180), (115, 172944), (120, 165738), (138, 144120), (144, 138115), (180, 110492), (184, 108090), (207, 96080), (230, 86472), (240, 82869), (276, 72060), (345, 57648), (360, 55246), (368, 54045), (414, 48040), (460, 43236), (552, 36030), (690, 28824), (720, 27623), (828, 24020), (920, 21618), (1035, 19216), (1104, 18015), (1201, 16560), (1380, 14412), (1656, 12010), (1840, 10809), (2070, 9608), (2402, 8280), (2760, 7206), (3312, 6005), (3603, 5520), (4140, 4804)]