74427880

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{359}}^1$

素因数の和:514

約数の個数: 64

約数和(自身を含む): 172627200

約数和(自身を除く): 98199320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 73, 142, 146, 284, 292, 355, 359, 365, 568, 584, 710, 718, 730, 1420, 1436, 1460, 1795, 2840, 2872, 2920, 3590, 5183, 7180, 10366, 14360, 20732, 25489, 25915, 26207, 41464, 50978, 51830, 52414, 101956, 103660, 104828, 127445, 131035, 203912, 207320, 209656, 254890, 262070, 509780, 524140, 1019560, 1048280, 1860697, 3721394, 7442788, 9303485, 14885576, 18606970, 37213940, 74427880]

約数ペア:

[(1, 74427880), (2, 37213940), (4, 18606970), (5, 14885576), (8, 9303485), (10, 7442788), (20, 3721394), (40, 1860697), (71, 1048280), (73, 1019560), (142, 524140), (146, 509780), (284, 262070), (292, 254890), (355, 209656), (359, 207320), (365, 203912), (568, 131035), (584, 127445), (710, 104828), (718, 103660), (730, 101956), (1420, 52414), (1436, 51830), (1460, 50978), (1795, 41464), (2840, 26207), (2872, 25915), (2920, 25489), (3590, 20732), (5183, 14360), (7180, 10366)]