878731760

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^2\times {\mathrm{30427}}^1$

素因数の和:30478

約数の個数: 60

約数和(自身を含む): 2156310648

約数和(自身を除く): 1277578888

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 361, 380, 722, 760, 1444, 1520, 1805, 2888, 3610, 5776, 7220, 14440, 28880, 30427, 60854, 121708, 152135, 243416, 304270, 486832, 578113, 608540, 1156226, 1217080, 2312452, 2434160, 2890565, 4624904, 5781130, 9249808, 10984147, 11562260, 21968294, 23124520, 43936588, 46249040, 54920735, 87873176, 109841470, 175746352, 219682940, 439365880, 878731760]

約数ペア:

[(1, 878731760), (2, 439365880), (4, 219682940), (5, 175746352), (8, 109841470), (10, 87873176), (16, 54920735), (19, 46249040), (20, 43936588), (38, 23124520), (40, 21968294), (76, 11562260), (80, 10984147), (95, 9249808), (152, 5781130), (190, 4624904), (304, 2890565), (361, 2434160), (380, 2312452), (722, 1217080), (760, 1156226), (1444, 608540), (1520, 578113), (1805, 486832), (2888, 304270), (3610, 243416), (5776, 152135), (7220, 121708), (14440, 60854), (28880, 30427)]