19635680

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{7219}}^1$

素因数の和:7251

約数の個数: 48

約数和(自身を含む): 49124880

約数和(自身を除く): 29489200

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 68, 80, 85, 136, 160, 170, 272, 340, 544, 680, 1360, 2720, 7219, 14438, 28876, 36095, 57752, 72190, 115504, 122723, 144380, 231008, 245446, 288760, 490892, 577520, 613615, 981784, 1155040, 1227230, 1963568, 2454460, 3927136, 4908920, 9817840, 19635680]

約数ペア:

[(1, 19635680), (2, 9817840), (4, 4908920), (5, 3927136), (8, 2454460), (10, 1963568), (16, 1227230), (17, 1155040), (20, 981784), (32, 613615), (34, 577520), (40, 490892), (68, 288760), (80, 245446), (85, 231008), (136, 144380), (160, 122723), (170, 115504), (272, 72190), (340, 57752), (544, 36095), (680, 28876), (1360, 14438), (2720, 7219)]