131233240

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{149}}^1\times {\mathrm{227}}^1$

素因数の和:484

約数の個数: 64

約数和(自身を含む): 301644000

約数和(自身を除く): 170410760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 149, 194, 227, 298, 388, 454, 485, 596, 745, 776, 908, 970, 1135, 1192, 1490, 1816, 1940, 2270, 2980, 3880, 4540, 5960, 9080, 14453, 22019, 28906, 33823, 44038, 57812, 67646, 72265, 88076, 110095, 115624, 135292, 144530, 169115, 176152, 220190, 270584, 289060, 338230, 440380, 578120, 676460, 880760, 1352920, 3280831, 6561662, 13123324, 16404155, 26246648, 32808310, 65616620, 131233240]

約数ペア:

[(1, 131233240), (2, 65616620), (4, 32808310), (5, 26246648), (8, 16404155), (10, 13123324), (20, 6561662), (40, 3280831), (97, 1352920), (149, 880760), (194, 676460), (227, 578120), (298, 440380), (388, 338230), (454, 289060), (485, 270584), (596, 220190), (745, 176152), (776, 169115), (908, 144530), (970, 135292), (1135, 115624), (1192, 110095), (1490, 88076), (1816, 72265), (1940, 67646), (2270, 57812), (2980, 44038), (3880, 33823), (4540, 28906), (5960, 22019), (9080, 14453)]