18924152

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{157}}^1$

素因数の和:256

約数の個数: 64

約数和(自身を含む): 41143200

約数和(自身を除く): 22219048

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 61, 76, 104, 122, 152, 157, 244, 247, 314, 488, 494, 628, 793, 988, 1159, 1256, 1586, 1976, 2041, 2318, 2983, 3172, 4082, 4636, 5966, 6344, 8164, 9272, 9577, 11932, 15067, 16328, 19154, 23864, 30134, 38308, 38779, 60268, 76616, 77558, 120536, 124501, 155116, 181963, 249002, 310232, 363926, 498004, 727852, 996008, 1455704, 2365519, 4731038, 9462076, 18924152]

約数ペア:

[(1, 18924152), (2, 9462076), (4, 4731038), (8, 2365519), (13, 1455704), (19, 996008), (26, 727852), (38, 498004), (52, 363926), (61, 310232), (76, 249002), (104, 181963), (122, 155116), (152, 124501), (157, 120536), (244, 77558), (247, 76616), (314, 60268), (488, 38779), (494, 38308), (628, 30134), (793, 23864), (988, 19154), (1159, 16328), (1256, 15067), (1586, 11932), (1976, 9577), (2041, 9272), (2318, 8164), (2983, 6344), (3172, 5966), (4082, 4636)]