19819560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{167}}^1$

素因数の和:247

約数の個数: 128

約数和(自身を含む): 63866880

約数和(自身を除く): 44047320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 43, 46, 60, 69, 86, 92, 115, 120, 129, 138, 167, 172, 184, 215, 230, 258, 276, 334, 344, 345, 430, 460, 501, 516, 552, 645, 668, 690, 835, 860, 920, 989, 1002, 1032, 1290, 1336, 1380, 1670, 1720, 1978, 2004, 2505, 2580, 2760, 2967, 3340, 3841, 3956, 4008, 4945, 5010, 5160, 5934, 6680, 7181, 7682, 7912, 9890, 10020, 11523, 11868, 14362, 14835, 15364, 19205, 19780, 20040, 21543, 23046, 23736, 28724, 29670, 30728, 35905, 38410, 39560, 43086, 46092, 57448, 57615, 59340, 71810, 76820, 86172, 92184, 107715, 115230, 118680, 143620, 153640, 165163, 172344, 215430, 230460, 287240, 330326, 430860, 460920, 495489, 660652, 825815, 861720, 990978, 1321304, 1651630, 1981956, 2477445, 3303260, 3963912, 4954890, 6606520, 9909780, 19819560]

約数ペア:

[(1, 19819560), (2, 9909780), (3, 6606520), (4, 4954890), (5, 3963912), (6, 3303260), (8, 2477445), (10, 1981956), (12, 1651630), (15, 1321304), (20, 990978), (23, 861720), (24, 825815), (30, 660652), (40, 495489), (43, 460920), (46, 430860), (60, 330326), (69, 287240), (86, 230460), (92, 215430), (115, 172344), (120, 165163), (129, 153640), (138, 143620), (167, 118680), (172, 115230), (184, 107715), (215, 92184), (230, 86172), (258, 76820), (276, 71810), (334, 59340), (344, 57615), (345, 57448), (430, 46092), (460, 43086), (501, 39560), (516, 38410), (552, 35905), (645, 30728), (668, 29670), (690, 28724), (835, 23736), (860, 23046), (920, 21543), (989, 20040), (1002, 19780), (1032, 19205), (1290, 15364), (1336, 14835), (1380, 14362), (1670, 11868), (1720, 11523), (1978, 10020), (2004, 9890), (2505, 7912), (2580, 7682), (2760, 7181), (2967, 6680), (3340, 5934), (3841, 5160), (3956, 5010), (4008, 4945)]