90518140

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{1759}}^1$

素因数の和:1882

約数の個数: 48

約数和(自身を含む): 198696960

約数和(自身を除く): 108178820

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 83, 124, 155, 166, 310, 332, 415, 620, 830, 1660, 1759, 2573, 3518, 5146, 7036, 8795, 10292, 12865, 17590, 25730, 35180, 51460, 54529, 109058, 145997, 218116, 272645, 291994, 545290, 583988, 729985, 1090580, 1459970, 2919940, 4525907, 9051814, 18103628, 22629535, 45259070, 90518140]

約数ペア:

[(1, 90518140), (2, 45259070), (4, 22629535), (5, 18103628), (10, 9051814), (20, 4525907), (31, 2919940), (62, 1459970), (83, 1090580), (124, 729985), (155, 583988), (166, 545290), (310, 291994), (332, 272645), (415, 218116), (620, 145997), (830, 109058), (1660, 54529), (1759, 51460), (2573, 35180), (3518, 25730), (5146, 17590), (7036, 12865), (8795, 10292)]