28706480

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{32621}}^1$

素因数の和:32645

約数の個数: 40

約数和(自身を含む): 72812304

約数和(自身を除く): 44105824

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 32621, 65242, 130484, 163105, 260968, 326210, 358831, 521936, 652420, 717662, 1304840, 1435324, 1794155, 2609680, 2870648, 3588310, 5741296, 7176620, 14353240, 28706480]

約数ペア:

[(1, 28706480), (2, 14353240), (4, 7176620), (5, 5741296), (8, 3588310), (10, 2870648), (11, 2609680), (16, 1794155), (20, 1435324), (22, 1304840), (40, 717662), (44, 652420), (55, 521936), (80, 358831), (88, 326210), (110, 260968), (176, 163105), (220, 130484), (440, 65242), (880, 32621)]