129200215160

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{78780619}}^1$

素因数の和:78780671

約数の個数: 32

約数和(自身を含む): 297790743600

約数和(自身を除く): 168590528440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 78780619, 157561238, 315122476, 393903095, 630244952, 787806190, 1575612380, 3151224760, 3230005379, 6460010758, 12920021516, 16150026895, 25840043032, 32300053790, 64600107580, 129200215160]

約数ペア:

[(1, 129200215160), (2, 64600107580), (4, 32300053790), (5, 25840043032), (8, 16150026895), (10, 12920021516), (20, 6460010758), (40, 3230005379), (41, 3151224760), (82, 1575612380), (164, 787806190), (205, 630244952), (328, 393903095), (410, 315122476), (820, 157561238), (1640, 78780619)]