20304810

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{479}}^1$

素因数の和:652

約数の個数: 64

約数和(自身を含む): 54604800

約数和(自身を除く): 34299990

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 135, 157, 270, 314, 471, 479, 785, 942, 958, 1413, 1437, 1570, 2355, 2395, 2826, 2874, 4239, 4311, 4710, 4790, 7065, 7185, 8478, 8622, 12933, 14130, 14370, 21195, 21555, 25866, 42390, 43110, 64665, 75203, 129330, 150406, 225609, 376015, 451218, 676827, 752030, 1128045, 1353654, 2030481, 2256090, 3384135, 4060962, 6768270, 10152405, 20304810]

約数ペア:

[(1, 20304810), (2, 10152405), (3, 6768270), (5, 4060962), (6, 3384135), (9, 2256090), (10, 2030481), (15, 1353654), (18, 1128045), (27, 752030), (30, 676827), (45, 451218), (54, 376015), (90, 225609), (135, 150406), (157, 129330), (270, 75203), (314, 64665), (471, 43110), (479, 42390), (785, 25866), (942, 21555), (958, 21195), (1413, 14370), (1437, 14130), (1570, 12933), (2355, 8622), (2395, 8478), (2826, 7185), (2874, 7065), (4239, 4790), (4311, 4710)]