19467760

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{18719}}^1$

素因数の和:18745

約数の個数: 40

約数和(自身を含む): 48746880

約数和(自身を除く): 29279120

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 18719, 37438, 74876, 93595, 149752, 187190, 243347, 299504, 374380, 486694, 748760, 973388, 1216735, 1497520, 1946776, 2433470, 3893552, 4866940, 9733880, 19467760]

約数ペア:

[(1, 19467760), (2, 9733880), (4, 4866940), (5, 3893552), (8, 2433470), (10, 1946776), (13, 1497520), (16, 1216735), (20, 973388), (26, 748760), (40, 486694), (52, 374380), (65, 299504), (80, 243347), (104, 187190), (130, 149752), (208, 93595), (260, 74876), (520, 37438), (1040, 18719)]