768645

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1$

素因数の和:90

約数の個数: 48

約数和(自身を含む): 1497600

約数和(自身を除く): 728955

約数列:

[1, 3, 5, 9, 15, 19, 29, 31, 45, 57, 87, 93, 95, 145, 155, 171, 261, 279, 285, 435, 465, 551, 589, 855, 899, 1305, 1395, 1653, 1767, 2697, 2755, 2945, 4495, 4959, 5301, 8091, 8265, 8835, 13485, 17081, 24795, 26505, 40455, 51243, 85405, 153729, 256215, 768645]

約数ペア:

[(1, 768645), (3, 256215), (5, 153729), (9, 85405), (15, 51243), (19, 40455), (29, 26505), (31, 24795), (45, 17081), (57, 13485), (87, 8835), (93, 8265), (95, 8091), (145, 5301), (155, 4959), (171, 4495), (261, 2945), (279, 2755), (285, 2697), (435, 1767), (465, 1653), (551, 1395), (589, 1305), (855, 899)]