20327970

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{1109}}^1$

素因数の和:1179

約数の個数: 64

約数和(自身を含む): 53706240

約数和(自身を除く): 33378270

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 47, 65, 78, 94, 130, 141, 195, 235, 282, 390, 470, 611, 705, 1109, 1222, 1410, 1833, 2218, 3055, 3327, 3666, 5545, 6110, 6654, 9165, 11090, 14417, 16635, 18330, 28834, 33270, 43251, 52123, 72085, 86502, 104246, 144170, 156369, 216255, 260615, 312738, 432510, 521230, 677599, 781845, 1355198, 1563690, 2032797, 3387995, 4065594, 6775990, 10163985, 20327970]

約数ペア:

[(1, 20327970), (2, 10163985), (3, 6775990), (5, 4065594), (6, 3387995), (10, 2032797), (13, 1563690), (15, 1355198), (26, 781845), (30, 677599), (39, 521230), (47, 432510), (65, 312738), (78, 260615), (94, 216255), (130, 156369), (141, 144170), (195, 104246), (235, 86502), (282, 72085), (390, 52123), (470, 43251), (611, 33270), (705, 28834), (1109, 18330), (1222, 16635), (1410, 14417), (1833, 11090), (2218, 9165), (3055, 6654), (3327, 6110), (3666, 5545)]