28337720

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{22853}}^1$

素因数の和:22895

約数の個数: 32

約数和(自身を含む): 65819520

約数和(自身を除く): 37481800

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 22853, 45706, 91412, 114265, 182824, 228530, 457060, 708443, 914120, 1416886, 2833772, 3542215, 5667544, 7084430, 14168860, 28337720]

約数ペア:

[(1, 28337720), (2, 14168860), (4, 7084430), (5, 5667544), (8, 3542215), (10, 2833772), (20, 1416886), (31, 914120), (40, 708443), (62, 457060), (124, 228530), (155, 182824), (248, 114265), (310, 91412), (620, 45706), (1240, 22853)]