16983020

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{139}}^1\times {\mathrm{149}}^1$

素因数の和:338

約数の個数: 48

約数和(自身を含む): 37044000

約数和(自身を除く): 20060980

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 139, 149, 164, 205, 278, 298, 410, 556, 596, 695, 745, 820, 1390, 1490, 2780, 2980, 5699, 6109, 11398, 12218, 20711, 22796, 24436, 28495, 30545, 41422, 56990, 61090, 82844, 103555, 113980, 122180, 207110, 414220, 849151, 1698302, 3396604, 4245755, 8491510, 16983020]

約数ペア:

[(1, 16983020), (2, 8491510), (4, 4245755), (5, 3396604), (10, 1698302), (20, 849151), (41, 414220), (82, 207110), (139, 122180), (149, 113980), (164, 103555), (205, 82844), (278, 61090), (298, 56990), (410, 41422), (556, 30545), (596, 28495), (695, 24436), (745, 22796), (820, 20711), (1390, 12218), (1490, 11398), (2780, 6109), (2980, 5699)]