12877840

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^2\times {\mathrm{557}}^1$

素因数の和:604

約数の個数: 60

約数和(自身を含む): 31862916

約数和(自身を除く): 18985076

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 289, 340, 557, 578, 680, 1114, 1156, 1360, 1445, 2228, 2312, 2785, 2890, 4456, 4624, 5570, 5780, 8912, 9469, 11140, 11560, 18938, 22280, 23120, 37876, 44560, 47345, 75752, 94690, 151504, 160973, 189380, 321946, 378760, 643892, 757520, 804865, 1287784, 1609730, 2575568, 3219460, 6438920, 12877840]

約数ペア:

[(1, 12877840), (2, 6438920), (4, 3219460), (5, 2575568), (8, 1609730), (10, 1287784), (16, 804865), (17, 757520), (20, 643892), (34, 378760), (40, 321946), (68, 189380), (80, 160973), (85, 151504), (136, 94690), (170, 75752), (272, 47345), (289, 44560), (340, 37876), (557, 23120), (578, 22280), (680, 18938), (1114, 11560), (1156, 11140), (1360, 9469), (1445, 8912), (2228, 5780), (2312, 5570), (2785, 4624), (2890, 4456)]