818373320

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{269}}^1\times {\mathrm{4003}}^1$

素因数の和:4302

約数の個数: 64

約数和(自身を含む): 1945944000

約数和(自身を除く): 1127570680

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 269, 380, 538, 760, 1076, 1345, 2152, 2690, 4003, 5111, 5380, 8006, 10222, 10760, 16012, 20015, 20444, 25555, 32024, 40030, 40888, 51110, 76057, 80060, 102220, 152114, 160120, 204440, 304228, 380285, 608456, 760570, 1076807, 1521140, 2153614, 3042280, 4307228, 5384035, 8614456, 10768070, 20459333, 21536140, 40918666, 43072280, 81837332, 102296665, 163674664, 204593330, 409186660, 818373320]

約数ペア:

[(1, 818373320), (2, 409186660), (4, 204593330), (5, 163674664), (8, 102296665), (10, 81837332), (19, 43072280), (20, 40918666), (38, 21536140), (40, 20459333), (76, 10768070), (95, 8614456), (152, 5384035), (190, 4307228), (269, 3042280), (380, 2153614), (538, 1521140), (760, 1076807), (1076, 760570), (1345, 608456), (2152, 380285), (2690, 304228), (4003, 204440), (5111, 160120), (5380, 152114), (8006, 102220), (10222, 80060), (10760, 76057), (16012, 51110), (20015, 40888), (20444, 40030), (25555, 32024)]