20703100

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{59}}^1$

素因数の和:124

約数の個数: 108

約数和(自身を含む): 51949800

約数和(自身を除く): 31246700

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 29, 44, 50, 55, 58, 59, 100, 110, 116, 118, 121, 145, 220, 236, 242, 275, 290, 295, 319, 484, 550, 580, 590, 605, 638, 649, 725, 1100, 1180, 1210, 1276, 1298, 1450, 1475, 1595, 1711, 2420, 2596, 2900, 2950, 3025, 3190, 3245, 3422, 3509, 5900, 6050, 6380, 6490, 6844, 7018, 7139, 7975, 8555, 12100, 12980, 14036, 14278, 15950, 16225, 17110, 17545, 18821, 28556, 31900, 32450, 34220, 35090, 35695, 37642, 42775, 64900, 70180, 71390, 75284, 85550, 87725, 94105, 142780, 171100, 175450, 178475, 188210, 207031, 350900, 356950, 376420, 414062, 470525, 713900, 828124, 941050, 1035155, 1882100, 2070310, 4140620, 5175775, 10351550, 20703100]

約数ペア:

[(1, 20703100), (2, 10351550), (4, 5175775), (5, 4140620), (10, 2070310), (11, 1882100), (20, 1035155), (22, 941050), (25, 828124), (29, 713900), (44, 470525), (50, 414062), (55, 376420), (58, 356950), (59, 350900), (100, 207031), (110, 188210), (116, 178475), (118, 175450), (121, 171100), (145, 142780), (220, 94105), (236, 87725), (242, 85550), (275, 75284), (290, 71390), (295, 70180), (319, 64900), (484, 42775), (550, 37642), (580, 35695), (590, 35090), (605, 34220), (638, 32450), (649, 31900), (725, 28556), (1100, 18821), (1180, 17545), (1210, 17110), (1276, 16225), (1298, 15950), (1450, 14278), (1475, 14036), (1595, 12980), (1711, 12100), (2420, 8555), (2596, 7975), (2900, 7139), (2950, 7018), (3025, 6844), (3190, 6490), (3245, 6380), (3422, 6050), (3509, 5900)]