20057008

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{3881}}^1$

素因数の和:3925

約数の個数: 40

約数和(自身を含む): 43323120

約数和(自身を除く): 23266112

約数列:

[1, 2, 4, 8, 16, 17, 19, 34, 38, 68, 76, 136, 152, 272, 304, 323, 646, 1292, 2584, 3881, 5168, 7762, 15524, 31048, 62096, 65977, 73739, 131954, 147478, 263908, 294956, 527816, 589912, 1055632, 1179824, 1253563, 2507126, 5014252, 10028504, 20057008]

約数ペア:

[(1, 20057008), (2, 10028504), (4, 5014252), (8, 2507126), (16, 1253563), (17, 1179824), (19, 1055632), (34, 589912), (38, 527816), (68, 294956), (76, 263908), (136, 147478), (152, 131954), (272, 73739), (304, 65977), (323, 62096), (646, 31048), (1292, 15524), (2584, 7762), (3881, 5168)]