19509230

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{103}}^1$

素因数の和:201

約数の個数: 64

約数和(自身を含む): 40255488

約数和(自身を除く): 20746258

約数列:

[1, 2, 5, 10, 13, 26, 31, 47, 62, 65, 94, 103, 130, 155, 206, 235, 310, 403, 470, 515, 611, 806, 1030, 1222, 1339, 1457, 2015, 2678, 2914, 3055, 3193, 4030, 4841, 6110, 6386, 6695, 7285, 9682, 13390, 14570, 15965, 18941, 24205, 31930, 37882, 41509, 48410, 62933, 83018, 94705, 125866, 150071, 189410, 207545, 300142, 314665, 415090, 629330, 750355, 1500710, 1950923, 3901846, 9754615, 19509230]

約数ペア:

[(1, 19509230), (2, 9754615), (5, 3901846), (10, 1950923), (13, 1500710), (26, 750355), (31, 629330), (47, 415090), (62, 314665), (65, 300142), (94, 207545), (103, 189410), (130, 150071), (155, 125866), (206, 94705), (235, 83018), (310, 62933), (403, 48410), (470, 41509), (515, 37882), (611, 31930), (806, 24205), (1030, 18941), (1222, 15965), (1339, 14570), (1457, 13390), (2015, 9682), (2678, 7285), (2914, 6695), (3055, 6386), (3193, 6110), (4030, 4841)]