19835611888

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{239}}^1\times {\mathrm{1123}}^1$

素因数の和:1550

約数の個数: 80

約数和(自身を含む): 40140288000

約数和(自身を除く): 20304676112

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 149, 239, 248, 298, 478, 496, 596, 956, 1123, 1192, 1912, 2246, 2384, 3824, 4492, 4619, 7409, 8984, 9238, 14818, 17968, 18476, 29636, 34813, 35611, 36952, 59272, 69626, 71222, 73904, 118544, 139252, 142444, 167327, 268397, 278504, 284888, 334654, 536794, 557008, 569776, 669308, 1073588, 1103941, 1338616, 2147176, 2207882, 2677232, 4294352, 4415764, 5187137, 8320307, 8831528, 10374274, 16640614, 17663056, 20748548, 33281228, 39991153, 41497096, 66562456, 79982306, 82994192, 133124912, 159964612, 319929224, 639858448, 1239725743, 2479451486, 4958902972, 9917805944, 19835611888]

約数ペア:

[(1, 19835611888), (2, 9917805944), (4, 4958902972), (8, 2479451486), (16, 1239725743), (31, 639858448), (62, 319929224), (124, 159964612), (149, 133124912), (239, 82994192), (248, 79982306), (298, 66562456), (478, 41497096), (496, 39991153), (596, 33281228), (956, 20748548), (1123, 17663056), (1192, 16640614), (1912, 10374274), (2246, 8831528), (2384, 8320307), (3824, 5187137), (4492, 4415764), (4619, 4294352), (7409, 2677232), (8984, 2207882), (9238, 2147176), (14818, 1338616), (17968, 1103941), (18476, 1073588), (29636, 669308), (34813, 569776), (35611, 557008), (36952, 536794), (59272, 334654), (69626, 284888), (71222, 278504), (73904, 268397), (118544, 167327), (139252, 142444)]