81401850

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{37}}^1\times {\mathrm{4889}}^1$

素因数の和:4944

約数の個数: 72

約数和(自身を含む): 224656380

約数和(自身を除く): 143254530

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 30, 37, 45, 50, 74, 75, 90, 111, 150, 185, 222, 225, 333, 370, 450, 555, 666, 925, 1110, 1665, 1850, 2775, 3330, 4889, 5550, 8325, 9778, 14667, 16650, 24445, 29334, 44001, 48890, 73335, 88002, 122225, 146670, 180893, 220005, 244450, 361786, 366675, 440010, 542679, 733350, 904465, 1085358, 1100025, 1628037, 1808930, 2200050, 2713395, 3256074, 4522325, 5426790, 8140185, 9044650, 13566975, 16280370, 27133950, 40700925, 81401850]

約数ペア:

[(1, 81401850), (2, 40700925), (3, 27133950), (5, 16280370), (6, 13566975), (9, 9044650), (10, 8140185), (15, 5426790), (18, 4522325), (25, 3256074), (30, 2713395), (37, 2200050), (45, 1808930), (50, 1628037), (74, 1100025), (75, 1085358), (90, 904465), (111, 733350), (150, 542679), (185, 440010), (222, 366675), (225, 361786), (333, 244450), (370, 220005), (450, 180893), (555, 146670), (666, 122225), (925, 88002), (1110, 73335), (1665, 48890), (1850, 44001), (2775, 29334), (3330, 24445), (4889, 16650), (5550, 14667), (8325, 9778)]