28013221768

素因数分解:

$2^3\times 7^1\times {\mathrm{83}}^1\times {\mathrm{2243}}^1\times {\mathrm{2687}}^1$

素因数の和:5026

約数の個数: 64

約数和(自身を含む): 60801269760

約数和(自身を除く): 32788047992

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 83, 166, 332, 581, 664, 1162, 2243, 2324, 2687, 4486, 4648, 5374, 8972, 10748, 15701, 17944, 18809, 21496, 31402, 37618, 62804, 75236, 125608, 150472, 186169, 223021, 372338, 446042, 744676, 892084, 1303183, 1489352, 1561147, 1784168, 2606366, 3122294, 5212732, 6026941, 6244588, 10425464, 12053882, 12489176, 24107764, 42188587, 48215528, 84377174, 168754348, 337508696, 500236103, 1000472206, 2000944412, 3501652721, 4001888824, 7003305442, 14006610884, 28013221768]

約数ペア:

[(1, 28013221768), (2, 14006610884), (4, 7003305442), (7, 4001888824), (8, 3501652721), (14, 2000944412), (28, 1000472206), (56, 500236103), (83, 337508696), (166, 168754348), (332, 84377174), (581, 48215528), (664, 42188587), (1162, 24107764), (2243, 12489176), (2324, 12053882), (2687, 10425464), (4486, 6244588), (4648, 6026941), (5374, 5212732), (8972, 3122294), (10748, 2606366), (15701, 1784168), (17944, 1561147), (18809, 1489352), (21496, 1303183), (31402, 892084), (37618, 744676), (62804, 446042), (75236, 372338), (125608, 223021), (150472, 186169)]