28794040

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{2111}}^1$

素因数の和:2164

約数の個数: 64

約数和(自身を含む): 72990720

約数和(自身を除く): 44196680

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, 2111, 2728, 3410, 4222, 6820, 8444, 10555, 13640, 16888, 21110, 23221, 42220, 46442, 65441, 84440, 92884, 116105, 130882, 185768, 232210, 261764, 327205, 464420, 523528, 654410, 719851, 928840, 1308820, 1439702, 2617640, 2879404, 3599255, 5758808, 7198510, 14397020, 28794040]

約数ペア:

[(1, 28794040), (2, 14397020), (4, 7198510), (5, 5758808), (8, 3599255), (10, 2879404), (11, 2617640), (20, 1439702), (22, 1308820), (31, 928840), (40, 719851), (44, 654410), (55, 523528), (62, 464420), (88, 327205), (110, 261764), (124, 232210), (155, 185768), (220, 130882), (248, 116105), (310, 92884), (341, 84440), (440, 65441), (620, 46442), (682, 42220), (1240, 23221), (1364, 21110), (1705, 16888), (2111, 13640), (2728, 10555), (3410, 8444), (4222, 6820)]