18575415

素因数分解:

$3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{101}}^1$

素因数の和:240

約数の個数: 48

約数和(自身を含む): 33542496

約数和(自身を除く): 14967081

約数列:

[1, 3, 5, 9, 15, 45, 61, 67, 101, 183, 201, 303, 305, 335, 505, 549, 603, 909, 915, 1005, 1515, 2745, 3015, 4087, 4545, 6161, 6767, 12261, 18483, 20301, 20435, 30805, 33835, 36783, 55449, 60903, 61305, 92415, 101505, 183915, 277245, 304515, 412787, 1238361, 2063935, 3715083, 6191805, 18575415]

約数ペア:

[(1, 18575415), (3, 6191805), (5, 3715083), (9, 2063935), (15, 1238361), (45, 412787), (61, 304515), (67, 277245), (101, 183915), (183, 101505), (201, 92415), (303, 61305), (305, 60903), (335, 55449), (505, 36783), (549, 33835), (603, 30805), (909, 20435), (915, 20301), (1005, 18483), (1515, 12261), (2745, 6767), (3015, 6161), (4087, 4545)]