81285912

素因数分解:

$2^3\times 3^2\times {\mathrm{71}}^1\times {\mathrm{15901}}^1$

素因数の和:15984

約数の個数: 48

約数和(自身を含む): 223264080

約数和(自身を除く): 141978168

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 71, 72, 142, 213, 284, 426, 568, 639, 852, 1278, 1704, 2556, 5112, 15901, 31802, 47703, 63604, 95406, 127208, 143109, 190812, 286218, 381624, 572436, 1128971, 1144872, 2257942, 3386913, 4515884, 6773826, 9031768, 10160739, 13547652, 20321478, 27095304, 40642956, 81285912]

約数ペア:

[(1, 81285912), (2, 40642956), (3, 27095304), (4, 20321478), (6, 13547652), (8, 10160739), (9, 9031768), (12, 6773826), (18, 4515884), (24, 3386913), (36, 2257942), (71, 1144872), (72, 1128971), (142, 572436), (213, 381624), (284, 286218), (426, 190812), (568, 143109), (639, 127208), (852, 95406), (1278, 63604), (1704, 47703), (2556, 31802), (5112, 15901)]