8020123240

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{80491}}^1$

素因数の和:80602

約数の個数: 64

約数和(自身を含む): 18777173760

約数和(自身を除く): 10757050520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 53, 94, 106, 188, 212, 235, 265, 376, 424, 470, 530, 940, 1060, 1880, 2120, 2491, 4982, 9964, 12455, 19928, 24910, 49820, 80491, 99640, 160982, 321964, 402455, 643928, 804910, 1609820, 3219640, 3783077, 4266023, 7566154, 8532046, 15132308, 17064092, 18915385, 21330115, 30264616, 34128184, 37830770, 42660230, 75661540, 85320460, 151323080, 170640920, 200503081, 401006162, 802012324, 1002515405, 1604024648, 2005030810, 4010061620, 8020123240]

約数ペア:

[(1, 8020123240), (2, 4010061620), (4, 2005030810), (5, 1604024648), (8, 1002515405), (10, 802012324), (20, 401006162), (40, 200503081), (47, 170640920), (53, 151323080), (94, 85320460), (106, 75661540), (188, 42660230), (212, 37830770), (235, 34128184), (265, 30264616), (376, 21330115), (424, 18915385), (470, 17064092), (530, 15132308), (940, 8532046), (1060, 7566154), (1880, 4266023), (2120, 3783077), (2491, 3219640), (4982, 1609820), (9964, 804910), (12455, 643928), (19928, 402455), (24910, 321964), (49820, 160982), (80491, 99640)]