28228455

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{97}}^1\times {\mathrm{223}}^1$

素因数の和:360

約数の個数: 48

約数和(自身を含む): 51367680

約数和(自身を除く): 23139225

約数列:

[1, 3, 5, 9, 15, 29, 45, 87, 97, 145, 223, 261, 291, 435, 485, 669, 873, 1115, 1305, 1455, 2007, 2813, 3345, 4365, 6467, 8439, 10035, 14065, 19401, 21631, 25317, 32335, 42195, 58203, 64893, 97005, 108155, 126585, 194679, 291015, 324465, 627299, 973395, 1881897, 3136495, 5645691, 9409485, 28228455]

約数ペア:

[(1, 28228455), (3, 9409485), (5, 5645691), (9, 3136495), (15, 1881897), (29, 973395), (45, 627299), (87, 324465), (97, 291015), (145, 194679), (223, 126585), (261, 108155), (291, 97005), (435, 64893), (485, 58203), (669, 42195), (873, 32335), (1115, 25317), (1305, 21631), (1455, 19401), (2007, 14065), (2813, 10035), (3345, 8439), (4365, 6467)]