78399320

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{2399}}^1$

素因数の和:2472

約数の個数: 64

約数和(自身を含む): 190080000

約数和(自身を除く): 111680680

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 43, 76, 86, 95, 152, 172, 190, 215, 344, 380, 430, 760, 817, 860, 1634, 1720, 2399, 3268, 4085, 4798, 6536, 8170, 9596, 11995, 16340, 19192, 23990, 32680, 45581, 47980, 91162, 95960, 103157, 182324, 206314, 227905, 364648, 412628, 455810, 515785, 825256, 911620, 1031570, 1823240, 1959983, 2063140, 3919966, 4126280, 7839932, 9799915, 15679864, 19599830, 39199660, 78399320]

約数ペア:

[(1, 78399320), (2, 39199660), (4, 19599830), (5, 15679864), (8, 9799915), (10, 7839932), (19, 4126280), (20, 3919966), (38, 2063140), (40, 1959983), (43, 1823240), (76, 1031570), (86, 911620), (95, 825256), (152, 515785), (172, 455810), (190, 412628), (215, 364648), (344, 227905), (380, 206314), (430, 182324), (760, 103157), (817, 95960), (860, 91162), (1634, 47980), (1720, 45581), (2399, 32680), (3268, 23990), (4085, 19192), (4798, 16340), (6536, 11995), (8170, 9596)]