248807715

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{61}}^1\times {\mathrm{1609}}^1$

素因数の和:1704

約数の個数: 48

約数和(自身を含む): 438409440

約数和(自身を除く): 189601725

約数列:

[1, 3, 5, 13, 15, 39, 61, 65, 169, 183, 195, 305, 507, 793, 845, 915, 1609, 2379, 2535, 3965, 4827, 8045, 10309, 11895, 20917, 24135, 30927, 51545, 62751, 98149, 104585, 154635, 271921, 294447, 313755, 490745, 815763, 1275937, 1359605, 1472235, 3827811, 4078815, 6379685, 16587181, 19139055, 49761543, 82935905, 248807715]

約数ペア:

[(1, 248807715), (3, 82935905), (5, 49761543), (13, 19139055), (15, 16587181), (39, 6379685), (61, 4078815), (65, 3827811), (169, 1472235), (183, 1359605), (195, 1275937), (305, 815763), (507, 490745), (793, 313755), (845, 294447), (915, 271921), (1609, 154635), (2379, 104585), (2535, 98149), (3965, 62751), (4827, 51545), (8045, 30927), (10309, 24135), (11895, 20917)]