27981920

素因数分解:

$2^5\times 5^1\times {\mathrm{47}}^1\times {\mathrm{61}}^2$

素因数の和:184

約数の個数: 72

約数和(自身を含む): 68638752

約数和(自身を除く): 40656832

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 47, 61, 80, 94, 122, 160, 188, 235, 244, 305, 376, 470, 488, 610, 752, 940, 976, 1220, 1504, 1880, 1952, 2440, 2867, 3721, 3760, 4880, 5734, 7442, 7520, 9760, 11468, 14335, 14884, 18605, 22936, 28670, 29768, 37210, 45872, 57340, 59536, 74420, 91744, 114680, 119072, 148840, 174887, 229360, 297680, 349774, 458720, 595360, 699548, 874435, 1399096, 1748870, 2798192, 3497740, 5596384, 6995480, 13990960, 27981920]

約数ペア:

[(1, 27981920), (2, 13990960), (4, 6995480), (5, 5596384), (8, 3497740), (10, 2798192), (16, 1748870), (20, 1399096), (32, 874435), (40, 699548), (47, 595360), (61, 458720), (80, 349774), (94, 297680), (122, 229360), (160, 174887), (188, 148840), (235, 119072), (244, 114680), (305, 91744), (376, 74420), (470, 59536), (488, 57340), (610, 45872), (752, 37210), (940, 29768), (976, 28670), (1220, 22936), (1504, 18605), (1880, 14884), (1952, 14335), (2440, 11468), (2867, 9760), (3721, 7520), (3760, 7442), (4880, 5734)]