18742710

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{599}}^1$

素因数の和:765

約数の個数: 64

約数和(自身を含む): 51840000

約数和(自身を除く): 33097290

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 149, 210, 298, 447, 599, 745, 894, 1043, 1198, 1490, 1797, 2086, 2235, 2995, 3129, 3594, 4193, 4470, 5215, 5990, 6258, 8386, 8985, 10430, 12579, 15645, 17970, 20965, 25158, 31290, 41930, 62895, 89251, 125790, 178502, 267753, 446255, 535506, 624757, 892510, 1249514, 1338765, 1874271, 2677530, 3123785, 3748542, 6247570, 9371355, 18742710]

約数ペア:

[(1, 18742710), (2, 9371355), (3, 6247570), (5, 3748542), (6, 3123785), (7, 2677530), (10, 1874271), (14, 1338765), (15, 1249514), (21, 892510), (30, 624757), (35, 535506), (42, 446255), (70, 267753), (105, 178502), (149, 125790), (210, 89251), (298, 62895), (447, 41930), (599, 31290), (745, 25158), (894, 20965), (1043, 17970), (1198, 15645), (1490, 12579), (1797, 10430), (2086, 8985), (2235, 8386), (2995, 6258), (3129, 5990), (3594, 5215), (4193, 4470)]