51911580

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{17657}}^1$

素因数の和:17683

約数の個数: 72

約数和(自身を含む): 169093008

約数和(自身を除く): 117181428

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 17657, 35314, 52971, 70628, 88285, 105942, 123599, 176570, 211884, 247198, 264855, 353140, 370797, 494396, 529710, 617995, 741594, 865193, 1059420, 1235990, 1483188, 1730386, 1853985, 2471980, 2595579, 3460772, 3707970, 4325965, 5191158, 7415940, 8651930, 10382316, 12977895, 17303860, 25955790, 51911580]

約数ペア:

[(1, 51911580), (2, 25955790), (3, 17303860), (4, 12977895), (5, 10382316), (6, 8651930), (7, 7415940), (10, 5191158), (12, 4325965), (14, 3707970), (15, 3460772), (20, 2595579), (21, 2471980), (28, 1853985), (30, 1730386), (35, 1483188), (42, 1235990), (49, 1059420), (60, 865193), (70, 741594), (84, 617995), (98, 529710), (105, 494396), (140, 370797), (147, 353140), (196, 264855), (210, 247198), (245, 211884), (294, 176570), (420, 123599), (490, 105942), (588, 88285), (735, 70628), (980, 52971), (1470, 35314), (2940, 17657)]