12705040

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{109}}^1$

素因数の和:200

約数の個数: 80

約数和(自身を含む): 31426560

約数和(自身を除く): 18721520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 47, 62, 80, 94, 109, 124, 155, 188, 218, 235, 248, 310, 376, 436, 470, 496, 545, 620, 752, 872, 940, 1090, 1240, 1457, 1744, 1880, 2180, 2480, 2914, 3379, 3760, 4360, 5123, 5828, 6758, 7285, 8720, 10246, 11656, 13516, 14570, 16895, 20492, 23312, 25615, 27032, 29140, 33790, 40984, 51230, 54064, 58280, 67580, 81968, 102460, 116560, 135160, 158813, 204920, 270320, 317626, 409840, 635252, 794065, 1270504, 1588130, 2541008, 3176260, 6352520, 12705040]

約数ペア:

[(1, 12705040), (2, 6352520), (4, 3176260), (5, 2541008), (8, 1588130), (10, 1270504), (16, 794065), (20, 635252), (31, 409840), (40, 317626), (47, 270320), (62, 204920), (80, 158813), (94, 135160), (109, 116560), (124, 102460), (155, 81968), (188, 67580), (218, 58280), (235, 54064), (248, 51230), (310, 40984), (376, 33790), (436, 29140), (470, 27032), (496, 25615), (545, 23312), (620, 20492), (752, 16895), (872, 14570), (940, 13516), (1090, 11656), (1240, 10246), (1457, 8720), (1744, 7285), (1880, 6758), (2180, 5828), (2480, 5123), (2914, 4360), (3379, 3760)]