15720465

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{509}}^1$

素因数の和:617

約数の個数: 32

約数和(自身を含む): 26438400

約数和(自身を除く): 10717935

約数列:

[1, 3, 5, 15, 29, 71, 87, 145, 213, 355, 435, 509, 1065, 1527, 2059, 2545, 6177, 7635, 10295, 14761, 30885, 36139, 44283, 73805, 108417, 180695, 221415, 542085, 1048031, 3144093, 5240155, 15720465]

約数ペア:

[(1, 15720465), (3, 5240155), (5, 3144093), (15, 1048031), (29, 542085), (71, 221415), (87, 180695), (145, 108417), (213, 73805), (355, 44283), (435, 36139), (509, 30885), (1065, 14761), (1527, 10295), (2059, 7635), (2545, 6177)]