20262736

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{1597}}^1$

素因数の和:1679

約数の個数: 40

約数和(自身を含む): 42998984

約数和(自身を除く): 22736248

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 61, 104, 122, 208, 244, 488, 793, 976, 1586, 1597, 3172, 3194, 6344, 6388, 12688, 12776, 20761, 25552, 41522, 83044, 97417, 166088, 194834, 332176, 389668, 779336, 1266421, 1558672, 2532842, 5065684, 10131368, 20262736]

約数ペア:

[(1, 20262736), (2, 10131368), (4, 5065684), (8, 2532842), (13, 1558672), (16, 1266421), (26, 779336), (52, 389668), (61, 332176), (104, 194834), (122, 166088), (208, 97417), (244, 83044), (488, 41522), (793, 25552), (976, 20761), (1586, 12776), (1597, 12688), (3172, 6388), (3194, 6344)]