31638340

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{631}}^1$

素因数の和:772

約数の個数: 48

約数和(自身を含む): 70076160

約数和(自身を除く): 38437820

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 109, 115, 218, 230, 436, 460, 545, 631, 1090, 1262, 2180, 2507, 2524, 3155, 5014, 6310, 10028, 12535, 12620, 14513, 25070, 29026, 50140, 58052, 68779, 72565, 137558, 145130, 275116, 290260, 343895, 687790, 1375580, 1581917, 3163834, 6327668, 7909585, 15819170, 31638340]

約数ペア:

[(1, 31638340), (2, 15819170), (4, 7909585), (5, 6327668), (10, 3163834), (20, 1581917), (23, 1375580), (46, 687790), (92, 343895), (109, 290260), (115, 275116), (218, 145130), (230, 137558), (436, 72565), (460, 68779), (545, 58052), (631, 50140), (1090, 29026), (1262, 25070), (2180, 14513), (2507, 12620), (2524, 12535), (3155, 10028), (5014, 6310)]