319528020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{251}}^1\times {\mathrm{433}}^1$

素因数の和:710

約数の個数: 144

約数和(自身を含む): 1047307968

約数和(自身を除く): 727779948

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, 251, 294, 420, 433, 490, 502, 588, 735, 753, 866, 980, 1004, 1255, 1299, 1470, 1506, 1732, 1757, 2165, 2510, 2598, 2940, 3012, 3031, 3514, 3765, 4330, 5020, 5196, 5271, 6062, 6495, 7028, 7530, 8660, 8785, 9093, 10542, 12124, 12299, 12990, 15060, 15155, 17570, 18186, 21084, 21217, 24598, 25980, 26355, 30310, 35140, 36372, 36897, 42434, 45465, 49196, 52710, 60620, 61495, 63651, 73794, 84868, 90930, 105420, 106085, 108683, 122990, 127302, 147588, 181860, 184485, 212170, 217366, 245980, 254604, 318255, 326049, 368970, 424340, 434732, 543415, 636510, 652098, 737940, 760781, 1086830, 1273020, 1304196, 1521562, 1630245, 2173660, 2282343, 3043124, 3260490, 3803905, 4564686, 5325467, 6520980, 7607810, 9129372, 10650934, 11411715, 15215620, 15976401, 21301868, 22823430, 26627335, 31952802, 45646860, 53254670, 63905604, 79882005, 106509340, 159764010, 319528020]

約数ペア:

[(1, 319528020), (2, 159764010), (3, 106509340), (4, 79882005), (5, 63905604), (6, 53254670), (7, 45646860), (10, 31952802), (12, 26627335), (14, 22823430), (15, 21301868), (20, 15976401), (21, 15215620), (28, 11411715), (30, 10650934), (35, 9129372), (42, 7607810), (49, 6520980), (60, 5325467), (70, 4564686), (84, 3803905), (98, 3260490), (105, 3043124), (140, 2282343), (147, 2173660), (196, 1630245), (210, 1521562), (245, 1304196), (251, 1273020), (294, 1086830), (420, 760781), (433, 737940), (490, 652098), (502, 636510), (588, 543415), (735, 434732), (753, 424340), (866, 368970), (980, 326049), (1004, 318255), (1255, 254604), (1299, 245980), (1470, 217366), (1506, 212170), (1732, 184485), (1757, 181860), (2165, 147588), (2510, 127302), (2598, 122990), (2940, 108683), (3012, 106085), (3031, 105420), (3514, 90930), (3765, 84868), (4330, 73794), (5020, 63651), (5196, 61495), (5271, 60620), (6062, 52710), (6495, 49196), (7028, 45465), (7530, 42434), (8660, 36897), (8785, 36372), (9093, 35140), (10542, 30310), (12124, 26355), (12299, 25980), (12990, 24598), (15060, 21217), (15155, 21084), (17570, 18186)]