1638438088

素因数分解:

$2^3\times 7^2\times {\mathrm{223}}^1\times {\mathrm{18743}}^1$

素因数の和:18986

約数の個数: 48

約数和(自身を含む): 3589850880

約数和(自身を除く): 1951412792

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 223, 392, 446, 892, 1561, 1784, 3122, 6244, 10927, 12488, 18743, 21854, 37486, 43708, 74972, 87416, 131201, 149944, 262402, 524804, 918407, 1049608, 1836814, 3673628, 4179689, 7347256, 8359378, 16718756, 29257823, 33437512, 58515646, 117031292, 204804761, 234062584, 409609522, 819219044, 1638438088]

約数ペア:

[(1, 1638438088), (2, 819219044), (4, 409609522), (7, 234062584), (8, 204804761), (14, 117031292), (28, 58515646), (49, 33437512), (56, 29257823), (98, 16718756), (196, 8359378), (223, 7347256), (392, 4179689), (446, 3673628), (892, 1836814), (1561, 1049608), (1784, 918407), (3122, 524804), (6244, 262402), (10927, 149944), (12488, 131201), (18743, 87416), (21854, 74972), (37486, 43708)]