19321900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{167}}^1$

素因数の和:283

約数の個数: 72

約数和(自身を含む): 45934560

約数和(自身を除く): 26612660

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 89, 100, 130, 167, 178, 260, 325, 334, 356, 445, 650, 668, 835, 890, 1157, 1300, 1670, 1780, 2171, 2225, 2314, 3340, 4175, 4342, 4450, 4628, 5785, 8350, 8684, 8900, 10855, 11570, 14863, 16700, 21710, 23140, 28925, 29726, 43420, 54275, 57850, 59452, 74315, 108550, 115700, 148630, 193219, 217100, 297260, 371575, 386438, 743150, 772876, 966095, 1486300, 1932190, 3864380, 4830475, 9660950, 19321900]

約数ペア:

[(1, 19321900), (2, 9660950), (4, 4830475), (5, 3864380), (10, 1932190), (13, 1486300), (20, 966095), (25, 772876), (26, 743150), (50, 386438), (52, 371575), (65, 297260), (89, 217100), (100, 193219), (130, 148630), (167, 115700), (178, 108550), (260, 74315), (325, 59452), (334, 57850), (356, 54275), (445, 43420), (650, 29726), (668, 28925), (835, 23140), (890, 21710), (1157, 16700), (1300, 14863), (1670, 11570), (1780, 10855), (2171, 8900), (2225, 8684), (2314, 8350), (3340, 5785), (4175, 4628), (4342, 4450)]