21940100

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{2411}}^1$

素因数の和:2445

約数の個数: 72

約数和(自身を含む): 58621248

約数和(自身を除く): 36681148

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 25, 26, 28, 35, 50, 52, 65, 70, 91, 100, 130, 140, 175, 182, 260, 325, 350, 364, 455, 650, 700, 910, 1300, 1820, 2275, 2411, 4550, 4822, 9100, 9644, 12055, 16877, 24110, 31343, 33754, 48220, 60275, 62686, 67508, 84385, 120550, 125372, 156715, 168770, 219401, 241100, 313430, 337540, 421925, 438802, 626860, 783575, 843850, 877604, 1097005, 1567150, 1687700, 2194010, 3134300, 4388020, 5485025, 10970050, 21940100]

約数ペア:

[(1, 21940100), (2, 10970050), (4, 5485025), (5, 4388020), (7, 3134300), (10, 2194010), (13, 1687700), (14, 1567150), (20, 1097005), (25, 877604), (26, 843850), (28, 783575), (35, 626860), (50, 438802), (52, 421925), (65, 337540), (70, 313430), (91, 241100), (100, 219401), (130, 168770), (140, 156715), (175, 125372), (182, 120550), (260, 84385), (325, 67508), (350, 62686), (364, 60275), (455, 48220), (650, 33754), (700, 31343), (910, 24110), (1300, 16877), (1820, 12055), (2275, 9644), (2411, 9100), (4550, 4822)]