1620525

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1$

素因数の和:102

約数の個数: 48

約数和(自身を含む): 2999808

約数和(自身を除く): 1379283

約数列:

[1, 3, 5, 15, 17, 25, 31, 41, 51, 75, 85, 93, 123, 155, 205, 255, 425, 465, 527, 615, 697, 775, 1025, 1271, 1275, 1581, 2091, 2325, 2635, 3075, 3485, 3813, 6355, 7905, 10455, 13175, 17425, 19065, 21607, 31775, 39525, 52275, 64821, 95325, 108035, 324105, 540175, 1620525]

約数ペア:

[(1, 1620525), (3, 540175), (5, 324105), (15, 108035), (17, 95325), (25, 64821), (31, 52275), (41, 39525), (51, 31775), (75, 21607), (85, 19065), (93, 17425), (123, 13175), (155, 10455), (205, 7905), (255, 6355), (425, 3813), (465, 3485), (527, 3075), (615, 2635), (697, 2325), (775, 2091), (1025, 1581), (1271, 1275)]