80789720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{5923}}^1$

素因数の和:5976

約数の個数: 64

約数和(自身を含む): 204733440

約数和(自身を除く): 123943720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 31, 40, 44, 55, 62, 88, 110, 124, 155, 220, 248, 310, 341, 440, 620, 682, 1240, 1364, 1705, 2728, 3410, 5923, 6820, 11846, 13640, 23692, 29615, 47384, 59230, 65153, 118460, 130306, 183613, 236920, 260612, 325765, 367226, 521224, 651530, 734452, 918065, 1303060, 1468904, 1836130, 2019743, 2606120, 3672260, 4039486, 7344520, 8078972, 10098715, 16157944, 20197430, 40394860, 80789720]

約数ペア:

[(1, 80789720), (2, 40394860), (4, 20197430), (5, 16157944), (8, 10098715), (10, 8078972), (11, 7344520), (20, 4039486), (22, 3672260), (31, 2606120), (40, 2019743), (44, 1836130), (55, 1468904), (62, 1303060), (88, 918065), (110, 734452), (124, 651530), (155, 521224), (220, 367226), (248, 325765), (310, 260612), (341, 236920), (440, 183613), (620, 130306), (682, 118460), (1240, 65153), (1364, 59230), (1705, 47384), (2728, 29615), (3410, 23692), (5923, 13640), (6820, 11846)]