20242297520

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{2621}}^1\times {\mathrm{5081}}^1$

素因数の和:7734

約数の個数: 80

約数和(自身を含む): 49569014880

約数和(自身を除く): 29326717360

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 2621, 5081, 5242, 10162, 10484, 13105, 20324, 20968, 25405, 26210, 40648, 41936, 49799, 50810, 52420, 81296, 96539, 99598, 101620, 104840, 193078, 199196, 203240, 209680, 248995, 386156, 398392, 406480, 482695, 497990, 772312, 796784, 965390, 995980, 1544624, 1930780, 1991960, 3861560, 3983920, 7723120, 13317301, 26634602, 53269204, 66586505, 106538408, 133173010, 213076816, 253028719, 266346020, 506057438, 532692040, 1012114876, 1065384080, 1265143595, 2024229752, 2530287190, 4048459504, 5060574380, 10121148760, 20242297520]

約数ペア:

[(1, 20242297520), (2, 10121148760), (4, 5060574380), (5, 4048459504), (8, 2530287190), (10, 2024229752), (16, 1265143595), (19, 1065384080), (20, 1012114876), (38, 532692040), (40, 506057438), (76, 266346020), (80, 253028719), (95, 213076816), (152, 133173010), (190, 106538408), (304, 66586505), (380, 53269204), (760, 26634602), (1520, 13317301), (2621, 7723120), (5081, 3983920), (5242, 3861560), (10162, 1991960), (10484, 1930780), (13105, 1544624), (20324, 995980), (20968, 965390), (25405, 796784), (26210, 772312), (40648, 497990), (41936, 482695), (49799, 406480), (50810, 398392), (52420, 386156), (81296, 248995), (96539, 209680), (99598, 203240), (101620, 199196), (104840, 193078)]