7903160

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1$

素因数の和:192

約数の個数: 64

約数和(自身を含む): 18748800

約数和(自身を除く): 10845640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 61, 79, 82, 122, 158, 164, 205, 244, 305, 316, 328, 395, 410, 488, 610, 632, 790, 820, 1220, 1580, 1640, 2440, 2501, 3160, 3239, 4819, 5002, 6478, 9638, 10004, 12505, 12956, 16195, 19276, 20008, 24095, 25010, 25912, 32390, 38552, 48190, 50020, 64780, 96380, 100040, 129560, 192760, 197579, 395158, 790316, 987895, 1580632, 1975790, 3951580, 7903160]

約数ペア:

[(1, 7903160), (2, 3951580), (4, 1975790), (5, 1580632), (8, 987895), (10, 790316), (20, 395158), (40, 197579), (41, 192760), (61, 129560), (79, 100040), (82, 96380), (122, 64780), (158, 50020), (164, 48190), (205, 38552), (244, 32390), (305, 25912), (316, 25010), (328, 24095), (395, 20008), (410, 19276), (488, 16195), (610, 12956), (632, 12505), (790, 10004), (820, 9638), (1220, 6478), (1580, 5002), (1640, 4819), (2440, 3239), (2501, 3160)]