20321184

素因数分解:

$2^5\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{857}}^1$

素因数の和:902

約数の個数: 96

約数和(自身を含む): 60540480

約数和(自身を除く): 40219296

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 19, 24, 26, 32, 38, 39, 48, 52, 57, 76, 78, 96, 104, 114, 152, 156, 208, 228, 247, 304, 312, 416, 456, 494, 608, 624, 741, 857, 912, 988, 1248, 1482, 1714, 1824, 1976, 2571, 2964, 3428, 3952, 5142, 5928, 6856, 7904, 10284, 11141, 11856, 13712, 16283, 20568, 22282, 23712, 27424, 32566, 33423, 41136, 44564, 48849, 65132, 66846, 82272, 89128, 97698, 130264, 133692, 178256, 195396, 211679, 260528, 267384, 356512, 390792, 423358, 521056, 534768, 635037, 781584, 846716, 1069536, 1270074, 1563168, 1693432, 2540148, 3386864, 5080296, 6773728, 10160592, 20321184]

約数ペア:

[(1, 20321184), (2, 10160592), (3, 6773728), (4, 5080296), (6, 3386864), (8, 2540148), (12, 1693432), (13, 1563168), (16, 1270074), (19, 1069536), (24, 846716), (26, 781584), (32, 635037), (38, 534768), (39, 521056), (48, 423358), (52, 390792), (57, 356512), (76, 267384), (78, 260528), (96, 211679), (104, 195396), (114, 178256), (152, 133692), (156, 130264), (208, 97698), (228, 89128), (247, 82272), (304, 66846), (312, 65132), (416, 48849), (456, 44564), (494, 41136), (608, 33423), (624, 32566), (741, 27424), (857, 23712), (912, 22282), (988, 20568), (1248, 16283), (1482, 13712), (1714, 11856), (1824, 11141), (1976, 10284), (2571, 7904), (2964, 6856), (3428, 5928), (3952, 5142)]