19356880

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{331}}^1$

素因数の和:404

約数の個数: 80

約数和(自身を含む): 48907584

約数和(自身を除く): 29550704

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 43, 68, 80, 85, 86, 136, 170, 172, 215, 272, 331, 340, 344, 430, 662, 680, 688, 731, 860, 1324, 1360, 1462, 1655, 1720, 2648, 2924, 3310, 3440, 3655, 5296, 5627, 5848, 6620, 7310, 11254, 11696, 13240, 14233, 14620, 22508, 26480, 28135, 28466, 29240, 45016, 56270, 56932, 58480, 71165, 90032, 112540, 113864, 142330, 225080, 227728, 241961, 284660, 450160, 483922, 569320, 967844, 1138640, 1209805, 1935688, 2419610, 3871376, 4839220, 9678440, 19356880]

約数ペア:

[(1, 19356880), (2, 9678440), (4, 4839220), (5, 3871376), (8, 2419610), (10, 1935688), (16, 1209805), (17, 1138640), (20, 967844), (34, 569320), (40, 483922), (43, 450160), (68, 284660), (80, 241961), (85, 227728), (86, 225080), (136, 142330), (170, 113864), (172, 112540), (215, 90032), (272, 71165), (331, 58480), (340, 56932), (344, 56270), (430, 45016), (662, 29240), (680, 28466), (688, 28135), (731, 26480), (860, 22508), (1324, 14620), (1360, 14233), (1462, 13240), (1655, 11696), (1720, 11254), (2648, 7310), (2924, 6620), (3310, 5848), (3440, 5627), (3655, 5296)]