15228920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{397}}^1$

素因数の和:552

約数の個数: 64

約数和(自身を含む): 39545280

約数和(自身を除く): 24316360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 137, 140, 274, 280, 397, 548, 685, 794, 959, 1096, 1370, 1588, 1918, 1985, 2740, 2779, 3176, 3836, 3970, 4795, 5480, 5558, 7672, 7940, 9590, 11116, 13895, 15880, 19180, 22232, 27790, 38360, 54389, 55580, 108778, 111160, 217556, 271945, 380723, 435112, 543890, 761446, 1087780, 1522892, 1903615, 2175560, 3045784, 3807230, 7614460, 15228920]

約数ペア:

[(1, 15228920), (2, 7614460), (4, 3807230), (5, 3045784), (7, 2175560), (8, 1903615), (10, 1522892), (14, 1087780), (20, 761446), (28, 543890), (35, 435112), (40, 380723), (56, 271945), (70, 217556), (137, 111160), (140, 108778), (274, 55580), (280, 54389), (397, 38360), (548, 27790), (685, 22232), (794, 19180), (959, 15880), (1096, 13895), (1370, 11116), (1588, 9590), (1918, 7940), (1985, 7672), (2740, 5558), (2779, 5480), (3176, 4795), (3836, 3970)]