12734996840

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{5219261}}^1$

素因数の和:5219333

約数の個数: 32

約数和(自身を含む): 29123481960

約数和(自身を除く): 16388485120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 5219261, 10438522, 20877044, 26096305, 41754088, 52192610, 104385220, 208770440, 318374921, 636749842, 1273499684, 1591874605, 2546999368, 3183749210, 6367498420, 12734996840]

約数ペア:

[(1, 12734996840), (2, 6367498420), (4, 3183749210), (5, 2546999368), (8, 1591874605), (10, 1273499684), (20, 636749842), (40, 318374921), (61, 208770440), (122, 104385220), (244, 52192610), (305, 41754088), (488, 26096305), (610, 20877044), (1220, 10438522), (2440, 5219261)]