8288680

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1$

素因数の和:194

約数の個数: 64

約数和(自身を含む): 19641600

約数和(自身を除く): 11352920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 61, 79, 86, 122, 158, 172, 215, 244, 305, 316, 344, 395, 430, 488, 610, 632, 790, 860, 1220, 1580, 1720, 2440, 2623, 3160, 3397, 4819, 5246, 6794, 9638, 10492, 13115, 13588, 16985, 19276, 20984, 24095, 26230, 27176, 33970, 38552, 48190, 52460, 67940, 96380, 104920, 135880, 192760, 207217, 414434, 828868, 1036085, 1657736, 2072170, 4144340, 8288680]

約数ペア:

[(1, 8288680), (2, 4144340), (4, 2072170), (5, 1657736), (8, 1036085), (10, 828868), (20, 414434), (40, 207217), (43, 192760), (61, 135880), (79, 104920), (86, 96380), (122, 67940), (158, 52460), (172, 48190), (215, 38552), (244, 33970), (305, 27176), (316, 26230), (344, 24095), (395, 20984), (430, 19276), (488, 16985), (610, 13588), (632, 13115), (790, 10492), (860, 9638), (1220, 6794), (1580, 5246), (1720, 4819), (2440, 3397), (2623, 3160)]