15770820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{20219}}^1$

素因数の和:20244

約数の個数: 48

約数和(自身を含む): 47557440

約数和(自身を除く): 31786620

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 20219, 40438, 60657, 80876, 101095, 121314, 202190, 242628, 262847, 303285, 404380, 525694, 606570, 788541, 1051388, 1213140, 1314235, 1577082, 2628470, 3154164, 3942705, 5256940, 7885410, 15770820]

約数ペア:

[(1, 15770820), (2, 7885410), (3, 5256940), (4, 3942705), (5, 3154164), (6, 2628470), (10, 1577082), (12, 1314235), (13, 1213140), (15, 1051388), (20, 788541), (26, 606570), (30, 525694), (39, 404380), (52, 303285), (60, 262847), (65, 242628), (78, 202190), (130, 121314), (156, 101095), (195, 80876), (260, 60657), (390, 40438), (780, 20219)]