247486515

素因数分解:

$3^1\times 5^1\times {\mathrm{223}}^1\times {\mathrm{241}}^1\times {\mathrm{307}}^1$

素因数の和:779

約数の個数: 32

約数和(自身を含む): 400705536

約数和(自身を除く): 153219021

約数列:

[1, 3, 5, 15, 223, 241, 307, 669, 723, 921, 1115, 1205, 1535, 3345, 3615, 4605, 53743, 68461, 73987, 161229, 205383, 221961, 268715, 342305, 369935, 806145, 1026915, 1109805, 16499101, 49497303, 82495505, 247486515]

約数ペア:

[(1, 247486515), (3, 82495505), (5, 49497303), (15, 16499101), (223, 1109805), (241, 1026915), (307, 806145), (669, 369935), (723, 342305), (921, 268715), (1115, 221961), (1205, 205383), (1535, 161229), (3345, 73987), (3615, 68461), (4605, 53743)]