157484920

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1$

素因数の和:213

約数の個数: 128

約数和(自身を含む): 392832000

約数和(自身を除く): 235347080

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 43, 61, 76, 79, 86, 95, 122, 152, 158, 172, 190, 215, 244, 305, 316, 344, 380, 395, 430, 488, 610, 632, 760, 790, 817, 860, 1159, 1220, 1501, 1580, 1634, 1720, 2318, 2440, 2623, 3002, 3160, 3268, 3397, 4085, 4636, 4819, 5246, 5795, 6004, 6536, 6794, 7505, 8170, 9272, 9638, 10492, 11590, 12008, 13115, 13588, 15010, 16340, 16985, 19276, 20984, 23180, 24095, 26230, 27176, 30020, 32680, 33970, 38552, 46360, 48190, 49837, 52460, 60040, 64543, 67940, 91561, 96380, 99674, 104920, 129086, 135880, 183122, 192760, 199348, 207217, 249185, 258172, 322715, 366244, 398696, 414434, 457805, 498370, 516344, 645430, 732488, 828868, 915610, 996740, 1036085, 1290860, 1657736, 1831220, 1993480, 2072170, 2581720, 3662440, 3937123, 4144340, 7874246, 8288680, 15748492, 19685615, 31496984, 39371230, 78742460, 157484920]

約数ペア:

[(1, 157484920), (2, 78742460), (4, 39371230), (5, 31496984), (8, 19685615), (10, 15748492), (19, 8288680), (20, 7874246), (38, 4144340), (40, 3937123), (43, 3662440), (61, 2581720), (76, 2072170), (79, 1993480), (86, 1831220), (95, 1657736), (122, 1290860), (152, 1036085), (158, 996740), (172, 915610), (190, 828868), (215, 732488), (244, 645430), (305, 516344), (316, 498370), (344, 457805), (380, 414434), (395, 398696), (430, 366244), (488, 322715), (610, 258172), (632, 249185), (760, 207217), (790, 199348), (817, 192760), (860, 183122), (1159, 135880), (1220, 129086), (1501, 104920), (1580, 99674), (1634, 96380), (1720, 91561), (2318, 67940), (2440, 64543), (2623, 60040), (3002, 52460), (3160, 49837), (3268, 48190), (3397, 46360), (4085, 38552), (4636, 33970), (4819, 32680), (5246, 30020), (5795, 27176), (6004, 26230), (6536, 24095), (6794, 23180), (7505, 20984), (8170, 19276), (9272, 16985), (9638, 16340), (10492, 15010), (11590, 13588), (12008, 13115)]