78742460

素因数分解:

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

素因数の和:211

約数の個数: 96

約数和(自身を含む): 183321600

約数和(自身を除く): 104579140

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 43, 61, 76, 79, 86, 95, 122, 158, 172, 190, 215, 244, 305, 316, 380, 395, 430, 610, 790, 817, 860, 1159, 1220, 1501, 1580, 1634, 2318, 2623, 3002, 3268, 3397, 4085, 4636, 4819, 5246, 5795, 6004, 6794, 7505, 8170, 9638, 10492, 11590, 13115, 13588, 15010, 16340, 16985, 19276, 23180, 24095, 26230, 30020, 33970, 48190, 49837, 52460, 64543, 67940, 91561, 96380, 99674, 129086, 183122, 199348, 207217, 249185, 258172, 322715, 366244, 414434, 457805, 498370, 645430, 828868, 915610, 996740, 1036085, 1290860, 1831220, 2072170, 3937123, 4144340, 7874246, 15748492, 19685615, 39371230, 78742460]

約数ペア:

[(1, 78742460), (2, 39371230), (4, 19685615), (5, 15748492), (10, 7874246), (19, 4144340), (20, 3937123), (38, 2072170), (43, 1831220), (61, 1290860), (76, 1036085), (79, 996740), (86, 915610), (95, 828868), (122, 645430), (158, 498370), (172, 457805), (190, 414434), (215, 366244), (244, 322715), (305, 258172), (316, 249185), (380, 207217), (395, 199348), (430, 183122), (610, 129086), (790, 99674), (817, 96380), (860, 91561), (1159, 67940), (1220, 64543), (1501, 52460), (1580, 49837), (1634, 48190), (2318, 33970), (2623, 30020), (3002, 26230), (3268, 24095), (3397, 23180), (4085, 19276), (4636, 16985), (4819, 16340), (5246, 15010), (5795, 13588), (6004, 13115), (6794, 11590), (7505, 10492), (8170, 9638)]