18877990

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{293}}^1\times {\mathrm{379}}^1$

素因数の和:696

約数の個数: 32

約数和(自身を含む): 36197280

約数和(自身を除く): 17319290

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 293, 379, 586, 758, 1465, 1895, 2930, 3790, 4981, 6443, 9962, 12886, 24905, 32215, 49810, 64430, 111047, 222094, 555235, 1110470, 1887799, 3775598, 9438995, 18877990]

約数ペア:

[(1, 18877990), (2, 9438995), (5, 3775598), (10, 1887799), (17, 1110470), (34, 555235), (85, 222094), (170, 111047), (293, 64430), (379, 49810), (586, 32215), (758, 24905), (1465, 12886), (1895, 9962), (2930, 6443), (3790, 4981)]