20177528620

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2579}}^1\times {\mathrm{12619}}^1$

素因数の和:15238

約数の個数: 48

約数和(自身を含む): 43760102400

約数和(自身を除く): 23582573780

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 2579, 5158, 10316, 12619, 12895, 25238, 25790, 50476, 51580, 63095, 79949, 126190, 159898, 252380, 319796, 391189, 399745, 782378, 799490, 1564756, 1598980, 1955945, 3911890, 7823780, 32544401, 65088802, 130177604, 162722005, 325444010, 650888020, 1008876431, 2017752862, 4035505724, 5044382155, 10088764310, 20177528620]

約数ペア:

[(1, 20177528620), (2, 10088764310), (4, 5044382155), (5, 4035505724), (10, 2017752862), (20, 1008876431), (31, 650888020), (62, 325444010), (124, 162722005), (155, 130177604), (310, 65088802), (620, 32544401), (2579, 7823780), (5158, 3911890), (10316, 1955945), (12619, 1598980), (12895, 1564756), (25238, 799490), (25790, 782378), (50476, 399745), (51580, 391189), (63095, 319796), (79949, 252380), (126190, 159898)]