51436980

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{40823}}^1$

素因数の和:40845

約数の個数: 72

約数和(自身を含む): 178319232

約数和(自身を除く): 126882252

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 40823, 81646, 122469, 163292, 204115, 244938, 285761, 367407, 408230, 489876, 571522, 612345, 734814, 816460, 857283, 1143044, 1224690, 1428805, 1469628, 1714566, 1837035, 2449380, 2571849, 2857610, 3429132, 3674070, 4286415, 5143698, 5715220, 7348140, 8572830, 10287396, 12859245, 17145660, 25718490, 51436980]

約数ペア:

[(1, 51436980), (2, 25718490), (3, 17145660), (4, 12859245), (5, 10287396), (6, 8572830), (7, 7348140), (9, 5715220), (10, 5143698), (12, 4286415), (14, 3674070), (15, 3429132), (18, 2857610), (20, 2571849), (21, 2449380), (28, 1837035), (30, 1714566), (35, 1469628), (36, 1428805), (42, 1224690), (45, 1143044), (60, 857283), (63, 816460), (70, 734814), (84, 612345), (90, 571522), (105, 489876), (126, 408230), (140, 367407), (180, 285761), (210, 244938), (252, 204115), (315, 163292), (420, 122469), (630, 81646), (1260, 40823)]