18041420

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{1129}}^1$

素因数の和:1202

約数の個数: 48

約数和(自身を含む): 41005440

約数和(自身を除く): 22964020

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 47, 68, 85, 94, 170, 188, 235, 340, 470, 799, 940, 1129, 1598, 2258, 3196, 3995, 4516, 5645, 7990, 11290, 15980, 19193, 22580, 38386, 53063, 76772, 95965, 106126, 191930, 212252, 265315, 383860, 530630, 902071, 1061260, 1804142, 3608284, 4510355, 9020710, 18041420]

約数ペア:

[(1, 18041420), (2, 9020710), (4, 4510355), (5, 3608284), (10, 1804142), (17, 1061260), (20, 902071), (34, 530630), (47, 383860), (68, 265315), (85, 212252), (94, 191930), (170, 106126), (188, 95965), (235, 76772), (340, 53063), (470, 38386), (799, 22580), (940, 19193), (1129, 15980), (1598, 11290), (2258, 7990), (3196, 5645), (3995, 4516)]