17813900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{193}}^1$

素因数の和:291

約数の個数: 72

約数和(自身を含む): 42434784

約数和(自身を除く): 24620884

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 71, 100, 130, 142, 193, 260, 284, 325, 355, 386, 650, 710, 772, 923, 965, 1300, 1420, 1775, 1846, 1930, 2509, 3550, 3692, 3860, 4615, 4825, 5018, 7100, 9230, 9650, 10036, 12545, 13703, 18460, 19300, 23075, 25090, 27406, 46150, 50180, 54812, 62725, 68515, 92300, 125450, 137030, 178139, 250900, 274060, 342575, 356278, 685150, 712556, 890695, 1370300, 1781390, 3562780, 4453475, 8906950, 17813900]

約数ペア:

[(1, 17813900), (2, 8906950), (4, 4453475), (5, 3562780), (10, 1781390), (13, 1370300), (20, 890695), (25, 712556), (26, 685150), (50, 356278), (52, 342575), (65, 274060), (71, 250900), (100, 178139), (130, 137030), (142, 125450), (193, 92300), (260, 68515), (284, 62725), (325, 54812), (355, 50180), (386, 46150), (650, 27406), (710, 25090), (772, 23075), (923, 19300), (965, 18460), (1300, 13703), (1420, 12545), (1775, 10036), (1846, 9650), (1930, 9230), (2509, 7100), (3550, 5018), (3692, 4825), (3860, 4615)]