20659614080

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{64951}}^1$

素因数の和:65048

約数の個数: 128

約数和(自身を含む): 57240898560

約数和(自身を除く): 36581284480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 71, 80, 112, 128, 140, 142, 160, 224, 280, 284, 320, 355, 448, 497, 560, 568, 640, 710, 896, 994, 1120, 1136, 1420, 1988, 2240, 2272, 2485, 2840, 3976, 4480, 4544, 4970, 5680, 7952, 9088, 9940, 11360, 15904, 19880, 22720, 31808, 39760, 45440, 63616, 64951, 79520, 129902, 159040, 259804, 318080, 324755, 454657, 519608, 649510, 909314, 1039216, 1299020, 1818628, 2078432, 2273285, 2598040, 3637256, 4156864, 4546570, 4611521, 5196080, 7274512, 8313728, 9093140, 9223042, 10392160, 14549024, 18186280, 18446084, 20784320, 23057605, 29098048, 32280647, 36372560, 36892168, 41568640, 46115210, 58196096, 64561294, 72745120, 73784336, 92230420, 129122588, 145490240, 147568672, 161403235, 184460840, 258245176, 290980480, 295137344, 322806470, 368921680, 516490352, 590274688, 645612940, 737843360, 1032980704, 1291225880, 1475686720, 2065961408, 2582451760, 2951373440, 4131922816, 5164903520, 10329807040, 20659614080]

約数ペア:

[(1, 20659614080), (2, 10329807040), (4, 5164903520), (5, 4131922816), (7, 2951373440), (8, 2582451760), (10, 2065961408), (14, 1475686720), (16, 1291225880), (20, 1032980704), (28, 737843360), (32, 645612940), (35, 590274688), (40, 516490352), (56, 368921680), (64, 322806470), (70, 295137344), (71, 290980480), (80, 258245176), (112, 184460840), (128, 161403235), (140, 147568672), (142, 145490240), (160, 129122588), (224, 92230420), (280, 73784336), (284, 72745120), (320, 64561294), (355, 58196096), (448, 46115210), (497, 41568640), (560, 36892168), (568, 36372560), (640, 32280647), (710, 29098048), (896, 23057605), (994, 20784320), (1120, 18446084), (1136, 18186280), (1420, 14549024), (1988, 10392160), (2240, 9223042), (2272, 9093140), (2485, 8313728), (2840, 7274512), (3976, 5196080), (4480, 4611521), (4544, 4546570), (4970, 4156864), (5680, 3637256), (7952, 2598040), (9088, 2273285), (9940, 2078432), (11360, 1818628), (15904, 1299020), (19880, 1039216), (22720, 909314), (31808, 649510), (39760, 519608), (45440, 454657), (63616, 324755), (64951, 318080), (79520, 259804), (129902, 159040)]