12495140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{599}}^1$

素因数の和:764

約数の個数: 48

約数和(自身を含む): 30240000

約数和(自身を除く): 17744860

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 149, 298, 596, 599, 745, 1043, 1198, 1490, 2086, 2396, 2980, 2995, 4172, 4193, 5215, 5990, 8386, 10430, 11980, 16772, 20860, 20965, 41930, 83860, 89251, 178502, 357004, 446255, 624757, 892510, 1249514, 1785020, 2499028, 3123785, 6247570, 12495140]

約数ペア:

[(1, 12495140), (2, 6247570), (4, 3123785), (5, 2499028), (7, 1785020), (10, 1249514), (14, 892510), (20, 624757), (28, 446255), (35, 357004), (70, 178502), (140, 89251), (149, 83860), (298, 41930), (596, 20965), (599, 20860), (745, 16772), (1043, 11980), (1198, 10430), (1490, 8386), (2086, 5990), (2396, 5215), (2980, 4193), (2995, 4172)]