81728865

素因数分解:

$3^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{331}}^1$

素因数の和:435

約数の個数: 64

約数和(自身を含む): 152985600

約数和(自身を除く): 71256735

約数列:

[1, 3, 5, 9, 15, 27, 31, 45, 59, 93, 135, 155, 177, 279, 295, 331, 465, 531, 837, 885, 993, 1395, 1593, 1655, 1829, 2655, 2979, 4185, 4965, 5487, 7965, 8937, 9145, 10261, 14895, 16461, 19529, 27435, 30783, 44685, 49383, 51305, 58587, 82305, 92349, 97645, 153915, 175761, 246915, 277047, 292935, 461745, 527283, 605399, 878805, 1385235, 1816197, 2636415, 3026995, 5448591, 9080985, 16345773, 27242955, 81728865]

約数ペア:

[(1, 81728865), (3, 27242955), (5, 16345773), (9, 9080985), (15, 5448591), (27, 3026995), (31, 2636415), (45, 1816197), (59, 1385235), (93, 878805), (135, 605399), (155, 527283), (177, 461745), (279, 292935), (295, 277047), (331, 246915), (465, 175761), (531, 153915), (837, 97645), (885, 92349), (993, 82305), (1395, 58587), (1593, 51305), (1655, 49383), (1829, 44685), (2655, 30783), (2979, 27435), (4185, 19529), (4965, 16461), (5487, 14895), (7965, 10261), (8937, 9145)]