20277315

素因数分解:

$3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{83}}^1\times {\mathrm{89}}^1$

素因数の和:244

約数の個数: 48

約数和(自身を含む): 36560160

約数和(自身を除く): 16282845

約数列:

[1, 3, 5, 9, 15, 45, 61, 83, 89, 183, 249, 267, 305, 415, 445, 549, 747, 801, 915, 1245, 1335, 2745, 3735, 4005, 5063, 5429, 7387, 15189, 16287, 22161, 25315, 27145, 36935, 45567, 48861, 66483, 75945, 81435, 110805, 227835, 244305, 332415, 450607, 1351821, 2253035, 4055463, 6759105, 20277315]

約数ペア:

[(1, 20277315), (3, 6759105), (5, 4055463), (9, 2253035), (15, 1351821), (45, 450607), (61, 332415), (83, 244305), (89, 227835), (183, 110805), (249, 81435), (267, 75945), (305, 66483), (415, 48861), (445, 45567), (549, 36935), (747, 27145), (801, 25315), (915, 22161), (1245, 16287), (1335, 15189), (2745, 7387), (3735, 5429), (4005, 5063)]