19695650

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{193}}^1$

素因数の和:375

約数の個数: 48

約数和(自身を含む): 39908904

約数和(自身を除く): 20213254

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 157, 193, 314, 325, 386, 650, 785, 965, 1570, 1930, 2041, 2509, 3925, 4082, 4825, 5018, 7850, 9650, 10205, 12545, 20410, 25090, 30301, 51025, 60602, 62725, 102050, 125450, 151505, 303010, 393913, 757525, 787826, 1515050, 1969565, 3939130, 9847825, 19695650]

約数ペア:

[(1, 19695650), (2, 9847825), (5, 3939130), (10, 1969565), (13, 1515050), (25, 787826), (26, 757525), (50, 393913), (65, 303010), (130, 151505), (157, 125450), (193, 102050), (314, 62725), (325, 60602), (386, 51025), (650, 30301), (785, 25090), (965, 20410), (1570, 12545), (1930, 10205), (2041, 9650), (2509, 7850), (3925, 5018), (4082, 4825)]