1982140

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1$

素因数の和:202

約数の個数: 48

約数和(自身を含む): 4515840

約数和(自身を除く): 2533700

約数列:

[1, 2, 4, 5, 10, 20, 23, 31, 46, 62, 92, 115, 124, 139, 155, 230, 278, 310, 460, 556, 620, 695, 713, 1390, 1426, 2780, 2852, 3197, 3565, 4309, 6394, 7130, 8618, 12788, 14260, 15985, 17236, 21545, 31970, 43090, 63940, 86180, 99107, 198214, 396428, 495535, 991070, 1982140]

約数ペア:

[(1, 1982140), (2, 991070), (4, 495535), (5, 396428), (10, 198214), (20, 99107), (23, 86180), (31, 63940), (46, 43090), (62, 31970), (92, 21545), (115, 17236), (124, 15985), (139, 14260), (155, 12788), (230, 8618), (278, 7130), (310, 6394), (460, 4309), (556, 3565), (620, 3197), (695, 2852), (713, 2780), (1390, 1426)]