20238885

素因数分解:

$3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1\times {\mathrm{101}}^1$

素因数の和:246

約数の個数: 48

約数和(自身を含む): 36502128

約数和(自身を除く): 16263243

約数列:

[1, 3, 5, 9, 15, 45, 61, 73, 101, 183, 219, 303, 305, 365, 505, 549, 657, 909, 915, 1095, 1515, 2745, 3285, 4453, 4545, 6161, 7373, 13359, 18483, 22119, 22265, 30805, 36865, 40077, 55449, 66357, 66795, 92415, 110595, 200385, 277245, 331785, 449753, 1349259, 2248765, 4047777, 6746295, 20238885]

約数ペア:

[(1, 20238885), (3, 6746295), (5, 4047777), (9, 2248765), (15, 1349259), (45, 449753), (61, 331785), (73, 277245), (101, 200385), (183, 110595), (219, 92415), (303, 66795), (305, 66357), (365, 55449), (505, 40077), (549, 36865), (657, 30805), (909, 22265), (915, 22119), (1095, 18483), (1515, 13359), (2745, 7373), (3285, 6161), (4453, 4545)]