20120309972

素因数分解:

$2^2\times 7^1\times {\mathrm{79}}^2\times {\mathrm{97}}^1\times {\mathrm{1187}}^1$

素因数の和:1453

約数の個数: 72

約数和(自身を含む): 41211301824

約数和(自身を除く): 21090991852

約数列:

[1, 2, 4, 7, 14, 28, 79, 97, 158, 194, 316, 388, 553, 679, 1106, 1187, 1358, 2212, 2374, 2716, 4748, 6241, 7663, 8309, 12482, 15326, 16618, 24964, 30652, 33236, 43687, 53641, 87374, 93773, 107282, 115139, 174748, 187546, 214564, 230278, 375092, 460556, 605377, 656411, 805973, 1210754, 1312822, 1611946, 2421508, 2625644, 3223892, 4237639, 7408067, 8475278, 9095981, 14816134, 16950556, 18191962, 29632268, 36383924, 51856469, 63671867, 103712938, 127343734, 207425876, 254687468, 718582499, 1437164998, 2874329996, 5030077493, 10060154986, 20120309972]

約数ペア:

[(1, 20120309972), (2, 10060154986), (4, 5030077493), (7, 2874329996), (14, 1437164998), (28, 718582499), (79, 254687468), (97, 207425876), (158, 127343734), (194, 103712938), (316, 63671867), (388, 51856469), (553, 36383924), (679, 29632268), (1106, 18191962), (1187, 16950556), (1358, 14816134), (2212, 9095981), (2374, 8475278), (2716, 7408067), (4748, 4237639), (6241, 3223892), (7663, 2625644), (8309, 2421508), (12482, 1611946), (15326, 1312822), (16618, 1210754), (24964, 805973), (30652, 656411), (33236, 605377), (43687, 460556), (53641, 375092), (87374, 230278), (93773, 214564), (107282, 187546), (115139, 174748)]