81308490

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{647}}^1$

素因数の和:787

約数の個数: 64

約数和(自身を含む): 201553920

約数和(自身を除く): 120245430

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 59, 71, 118, 142, 177, 213, 295, 354, 355, 426, 590, 647, 710, 885, 1065, 1294, 1770, 1941, 2130, 3235, 3882, 4189, 6470, 8378, 9705, 12567, 19410, 20945, 25134, 38173, 41890, 45937, 62835, 76346, 91874, 114519, 125670, 137811, 190865, 229038, 229685, 275622, 381730, 459370, 572595, 689055, 1145190, 1378110, 2710283, 5420566, 8130849, 13551415, 16261698, 27102830, 40654245, 81308490]

約数ペア:

[(1, 81308490), (2, 40654245), (3, 27102830), (5, 16261698), (6, 13551415), (10, 8130849), (15, 5420566), (30, 2710283), (59, 1378110), (71, 1145190), (118, 689055), (142, 572595), (177, 459370), (213, 381730), (295, 275622), (354, 229685), (355, 229038), (426, 190865), (590, 137811), (647, 125670), (710, 114519), (885, 91874), (1065, 76346), (1294, 62835), (1770, 45937), (1941, 41890), (2130, 38173), (3235, 25134), (3882, 20945), (4189, 19410), (6470, 12567), (8378, 9705)]