7987100

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{137}}^1$

素因数の和:215

約数の個数: 72

約数和(自身を含む): 19405008

約数和(自身を除く): 11417908

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 53, 55, 100, 106, 110, 137, 212, 220, 265, 274, 275, 530, 548, 550, 583, 685, 1060, 1100, 1166, 1325, 1370, 1507, 2332, 2650, 2740, 2915, 3014, 3425, 5300, 5830, 6028, 6850, 7261, 7535, 11660, 13700, 14522, 14575, 15070, 29044, 29150, 30140, 36305, 37675, 58300, 72610, 75350, 79871, 145220, 150700, 159742, 181525, 319484, 363050, 399355, 726100, 798710, 1597420, 1996775, 3993550, 7987100]

約数ペア:

[(1, 7987100), (2, 3993550), (4, 1996775), (5, 1597420), (10, 798710), (11, 726100), (20, 399355), (22, 363050), (25, 319484), (44, 181525), (50, 159742), (53, 150700), (55, 145220), (100, 79871), (106, 75350), (110, 72610), (137, 58300), (212, 37675), (220, 36305), (265, 30140), (274, 29150), (275, 29044), (530, 15070), (548, 14575), (550, 14522), (583, 13700), (685, 11660), (1060, 7535), (1100, 7261), (1166, 6850), (1325, 6028), (1370, 5830), (1507, 5300), (2332, 3425), (2650, 3014), (2740, 2915)]