51787515

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{659}}^1$

素因数の和:724

約数の個数: 48

約数和(自身を含む): 92759040

約数和(自身を除く): 40971525

約数列:

[1, 3, 5, 13, 15, 31, 39, 65, 93, 155, 169, 195, 403, 465, 507, 659, 845, 1209, 1977, 2015, 2535, 3295, 5239, 6045, 8567, 9885, 15717, 20429, 25701, 26195, 42835, 61287, 78585, 102145, 111371, 128505, 265577, 306435, 334113, 556855, 796731, 1327885, 1670565, 3452501, 3983655, 10357503, 17262505, 51787515]

約数ペア:

[(1, 51787515), (3, 17262505), (5, 10357503), (13, 3983655), (15, 3452501), (31, 1670565), (39, 1327885), (65, 796731), (93, 556855), (155, 334113), (169, 306435), (195, 265577), (403, 128505), (465, 111371), (507, 102145), (659, 78585), (845, 61287), (1209, 42835), (1977, 26195), (2015, 25701), (2535, 20429), (3295, 15717), (5239, 9885), (6045, 8567)]