20377080

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{23}}^2\times {\mathrm{107}}^1$

素因数の和:170

約数の個数: 144

約数和(自身を含む): 69877080

約数和(自身を除く): 49500000

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 23, 24, 30, 36, 40, 45, 46, 60, 69, 72, 90, 92, 107, 115, 120, 138, 180, 184, 207, 214, 230, 276, 321, 345, 360, 414, 428, 460, 529, 535, 552, 642, 690, 828, 856, 920, 963, 1035, 1058, 1070, 1284, 1380, 1587, 1605, 1656, 1926, 2070, 2116, 2140, 2461, 2568, 2645, 2760, 3174, 3210, 3852, 4140, 4232, 4280, 4761, 4815, 4922, 5290, 6348, 6420, 7383, 7704, 7935, 8280, 9522, 9630, 9844, 10580, 12305, 12696, 12840, 14766, 15870, 19044, 19260, 19688, 21160, 22149, 23805, 24610, 29532, 31740, 36915, 38088, 38520, 44298, 47610, 49220, 56603, 59064, 63480, 73830, 88596, 95220, 98440, 110745, 113206, 147660, 169809, 177192, 190440, 221490, 226412, 283015, 295320, 339618, 442980, 452824, 509427, 566030, 679236, 849045, 885960, 1018854, 1132060, 1358472, 1698090, 2037708, 2264120, 2547135, 3396180, 4075416, 5094270, 6792360, 10188540, 20377080]

約数ペア:

[(1, 20377080), (2, 10188540), (3, 6792360), (4, 5094270), (5, 4075416), (6, 3396180), (8, 2547135), (9, 2264120), (10, 2037708), (12, 1698090), (15, 1358472), (18, 1132060), (20, 1018854), (23, 885960), (24, 849045), (30, 679236), (36, 566030), (40, 509427), (45, 452824), (46, 442980), (60, 339618), (69, 295320), (72, 283015), (90, 226412), (92, 221490), (107, 190440), (115, 177192), (120, 169809), (138, 147660), (180, 113206), (184, 110745), (207, 98440), (214, 95220), (230, 88596), (276, 73830), (321, 63480), (345, 59064), (360, 56603), (414, 49220), (428, 47610), (460, 44298), (529, 38520), (535, 38088), (552, 36915), (642, 31740), (690, 29532), (828, 24610), (856, 23805), (920, 22149), (963, 21160), (1035, 19688), (1058, 19260), (1070, 19044), (1284, 15870), (1380, 14766), (1587, 12840), (1605, 12696), (1656, 12305), (1926, 10580), (2070, 9844), (2116, 9630), (2140, 9522), (2461, 8280), (2568, 7935), (2645, 7704), (2760, 7383), (3174, 6420), (3210, 6348), (3852, 5290), (4140, 4922), (4232, 4815), (4280, 4761)]