18187150

素因数分解:

$2^1\times 5^2\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1$

素因数の和:229

約数の個数: 48

約数和(自身を含む): 35287920

約数和(自身を除く): 17100770

約数列:

[1, 2, 5, 10, 25, 50, 61, 67, 89, 122, 134, 178, 305, 335, 445, 610, 670, 890, 1525, 1675, 2225, 3050, 3350, 4087, 4450, 5429, 5963, 8174, 10858, 11926, 20435, 27145, 29815, 40870, 54290, 59630, 102175, 135725, 149075, 204350, 271450, 298150, 363743, 727486, 1818715, 3637430, 9093575, 18187150]

約数ペア:

[(1, 18187150), (2, 9093575), (5, 3637430), (10, 1818715), (25, 727486), (50, 363743), (61, 298150), (67, 271450), (89, 204350), (122, 149075), (134, 135725), (178, 102175), (305, 59630), (335, 54290), (445, 40870), (610, 29815), (670, 27145), (890, 20435), (1525, 11926), (1675, 10858), (2225, 8174), (3050, 5963), (3350, 5429), (4087, 4450)]