31739288

素因数分解:

$2^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{389}}^1$

素因数の和:480

約数の個数: 64

約数和(自身を含む): 71884800

約数和(自身を除く): 40145512

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 47, 56, 62, 94, 124, 188, 217, 248, 329, 376, 389, 434, 658, 778, 868, 1316, 1457, 1556, 1736, 2632, 2723, 2914, 3112, 5446, 5828, 10199, 10892, 11656, 12059, 18283, 20398, 21784, 24118, 36566, 40796, 48236, 73132, 81592, 84413, 96472, 127981, 146264, 168826, 255962, 337652, 511924, 566773, 675304, 1023848, 1133546, 2267092, 3967411, 4534184, 7934822, 15869644, 31739288]

約数ペア:

[(1, 31739288), (2, 15869644), (4, 7934822), (7, 4534184), (8, 3967411), (14, 2267092), (28, 1133546), (31, 1023848), (47, 675304), (56, 566773), (62, 511924), (94, 337652), (124, 255962), (188, 168826), (217, 146264), (248, 127981), (329, 96472), (376, 84413), (389, 81592), (434, 73132), (658, 48236), (778, 40796), (868, 36566), (1316, 24118), (1457, 21784), (1556, 20398), (1736, 18283), (2632, 12059), (2723, 11656), (2914, 10892), (3112, 10199), (5446, 5828)]