39680480

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{499}}^1$

素因数の和:592

約数の個数: 96

約数和(自身を含む): 108864000

約数和(自身を除く): 69183520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 71, 80, 112, 140, 142, 160, 224, 280, 284, 355, 497, 499, 560, 568, 710, 994, 998, 1120, 1136, 1420, 1988, 1996, 2272, 2485, 2495, 2840, 3493, 3976, 3992, 4970, 4990, 5680, 6986, 7952, 7984, 9940, 9980, 11360, 13972, 15904, 15968, 17465, 19880, 19960, 27944, 34930, 35429, 39760, 39920, 55888, 69860, 70858, 79520, 79840, 111776, 139720, 141716, 177145, 248003, 279440, 283432, 354290, 496006, 558880, 566864, 708580, 992012, 1133728, 1240015, 1417160, 1984024, 2480030, 2834320, 3968048, 4960060, 5668640, 7936096, 9920120, 19840240, 39680480]

約数ペア:

[(1, 39680480), (2, 19840240), (4, 9920120), (5, 7936096), (7, 5668640), (8, 4960060), (10, 3968048), (14, 2834320), (16, 2480030), (20, 1984024), (28, 1417160), (32, 1240015), (35, 1133728), (40, 992012), (56, 708580), (70, 566864), (71, 558880), (80, 496006), (112, 354290), (140, 283432), (142, 279440), (160, 248003), (224, 177145), (280, 141716), (284, 139720), (355, 111776), (497, 79840), (499, 79520), (560, 70858), (568, 69860), (710, 55888), (994, 39920), (998, 39760), (1120, 35429), (1136, 34930), (1420, 27944), (1988, 19960), (1996, 19880), (2272, 17465), (2485, 15968), (2495, 15904), (2840, 13972), (3493, 11360), (3976, 9980), (3992, 9940), (4970, 7984), (4990, 7952), (5680, 6986)]