20199499100

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{2689}}^1\times {\mathrm{6829}}^1$

素因数の和:9543

約数の個数: 72

約数和(自身を含む): 47842510800

約数和(自身を除く): 27643011700

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 220, 275, 550, 1100, 2689, 5378, 6829, 10756, 13445, 13658, 26890, 27316, 29579, 34145, 53780, 59158, 67225, 68290, 75119, 118316, 134450, 136580, 147895, 150238, 170725, 268900, 295790, 300476, 341450, 375595, 591580, 682900, 739475, 751190, 1478950, 1502380, 1877975, 2957900, 3755950, 7511900, 18363181, 36726362, 73452724, 91815905, 183631810, 201994991, 367263620, 403989982, 459079525, 807979964, 918159050, 1009974955, 1836318100, 2019949910, 4039899820, 5049874775, 10099749550, 20199499100]

約数ペア:

[(1, 20199499100), (2, 10099749550), (4, 5049874775), (5, 4039899820), (10, 2019949910), (11, 1836318100), (20, 1009974955), (22, 918159050), (25, 807979964), (44, 459079525), (50, 403989982), (55, 367263620), (100, 201994991), (110, 183631810), (220, 91815905), (275, 73452724), (550, 36726362), (1100, 18363181), (2689, 7511900), (5378, 3755950), (6829, 2957900), (10756, 1877975), (13445, 1502380), (13658, 1478950), (26890, 751190), (27316, 739475), (29579, 682900), (34145, 591580), (53780, 375595), (59158, 341450), (67225, 300476), (68290, 295790), (75119, 268900), (118316, 170725), (134450, 150238), (136580, 147895)]