19530680

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^2\times {\mathrm{71}}^1$

素因数の和:141

約数の個数: 96

約数和(自身を含む): 50168160

約数和(自身を除く): 30637480

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 23, 26, 40, 46, 52, 65, 71, 92, 104, 115, 130, 142, 184, 230, 260, 284, 299, 355, 460, 520, 529, 568, 598, 710, 920, 923, 1058, 1196, 1420, 1495, 1633, 1846, 2116, 2392, 2645, 2840, 2990, 3266, 3692, 4232, 4615, 5290, 5980, 6532, 6877, 7384, 8165, 9230, 10580, 11960, 13064, 13754, 16330, 18460, 21160, 21229, 27508, 32660, 34385, 36920, 37559, 42458, 55016, 65320, 68770, 75118, 84916, 106145, 137540, 150236, 169832, 187795, 212290, 275080, 300472, 375590, 424580, 488267, 751180, 849160, 976534, 1502360, 1953068, 2441335, 3906136, 4882670, 9765340, 19530680]

約数ペア:

[(1, 19530680), (2, 9765340), (4, 4882670), (5, 3906136), (8, 2441335), (10, 1953068), (13, 1502360), (20, 976534), (23, 849160), (26, 751180), (40, 488267), (46, 424580), (52, 375590), (65, 300472), (71, 275080), (92, 212290), (104, 187795), (115, 169832), (130, 150236), (142, 137540), (184, 106145), (230, 84916), (260, 75118), (284, 68770), (299, 65320), (355, 55016), (460, 42458), (520, 37559), (529, 36920), (568, 34385), (598, 32660), (710, 27508), (920, 21229), (923, 21160), (1058, 18460), (1196, 16330), (1420, 13754), (1495, 13064), (1633, 11960), (1846, 10580), (2116, 9230), (2392, 8165), (2645, 7384), (2840, 6877), (2990, 6532), (3266, 5980), (3692, 5290), (4232, 4615)]