81798160

素因数分解:

$2^4\times 5^1\times {\mathrm{83}}^1\times {\mathrm{97}}^1\times {\mathrm{127}}^1$

素因数の和:320

約数の個数: 80

約数和(自身を含む): 195987456

約数和(自身を除く): 114189296

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 83, 97, 127, 166, 194, 254, 332, 388, 415, 485, 508, 635, 664, 776, 830, 970, 1016, 1270, 1328, 1552, 1660, 1940, 2032, 2540, 3320, 3880, 5080, 6640, 7760, 8051, 10160, 10541, 12319, 16102, 21082, 24638, 32204, 40255, 42164, 49276, 52705, 61595, 64408, 80510, 84328, 98552, 105410, 123190, 128816, 161020, 168656, 197104, 210820, 246380, 322040, 421640, 492760, 644080, 843280, 985520, 1022477, 2044954, 4089908, 5112385, 8179816, 10224770, 16359632, 20449540, 40899080, 81798160]

約数ペア:

[(1, 81798160), (2, 40899080), (4, 20449540), (5, 16359632), (8, 10224770), (10, 8179816), (16, 5112385), (20, 4089908), (40, 2044954), (80, 1022477), (83, 985520), (97, 843280), (127, 644080), (166, 492760), (194, 421640), (254, 322040), (332, 246380), (388, 210820), (415, 197104), (485, 168656), (508, 161020), (635, 128816), (664, 123190), (776, 105410), (830, 98552), (970, 84328), (1016, 80510), (1270, 64408), (1328, 61595), (1552, 52705), (1660, 49276), (1940, 42164), (2032, 40255), (2540, 32204), (3320, 24638), (3880, 21082), (5080, 16102), (6640, 12319), (7760, 10541), (8051, 10160)]