260281980

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{251}}^1\times {\mathrm{823}}^1$

素因数の和:1096

約数の個数: 144

約数和(自身を含む): 907006464

約数和(自身を除く): 646724484

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 251, 252, 315, 420, 502, 630, 753, 823, 1004, 1255, 1260, 1506, 1646, 1757, 2259, 2469, 2510, 3012, 3292, 3514, 3765, 4115, 4518, 4938, 5020, 5271, 5761, 7028, 7407, 7530, 8230, 8785, 9036, 9876, 10542, 11295, 11522, 12345, 14814, 15060, 15813, 16460, 17283, 17570, 21084, 22590, 23044, 24690, 26355, 28805, 29628, 31626, 34566, 35140, 37035, 45180, 49380, 51849, 52710, 57610, 63252, 69132, 74070, 79065, 86415, 103698, 105420, 115220, 148140, 158130, 172830, 206573, 207396, 259245, 316260, 345660, 413146, 518490, 619719, 826292, 1032865, 1036980, 1239438, 1446011, 1859157, 2065730, 2478876, 2892022, 3098595, 3718314, 4131460, 4338033, 5784044, 6197190, 7230055, 7436628, 8676066, 9295785, 12394380, 13014099, 14460110, 17352132, 18591570, 21690165, 26028198, 28920220, 37183140, 43380330, 52056396, 65070495, 86760660, 130140990, 260281980]

約数ペア:

[(1, 260281980), (2, 130140990), (3, 86760660), (4, 65070495), (5, 52056396), (6, 43380330), (7, 37183140), (9, 28920220), (10, 26028198), (12, 21690165), (14, 18591570), (15, 17352132), (18, 14460110), (20, 13014099), (21, 12394380), (28, 9295785), (30, 8676066), (35, 7436628), (36, 7230055), (42, 6197190), (45, 5784044), (60, 4338033), (63, 4131460), (70, 3718314), (84, 3098595), (90, 2892022), (105, 2478876), (126, 2065730), (140, 1859157), (180, 1446011), (210, 1239438), (251, 1036980), (252, 1032865), (315, 826292), (420, 619719), (502, 518490), (630, 413146), (753, 345660), (823, 316260), (1004, 259245), (1255, 207396), (1260, 206573), (1506, 172830), (1646, 158130), (1757, 148140), (2259, 115220), (2469, 105420), (2510, 103698), (3012, 86415), (3292, 79065), (3514, 74070), (3765, 69132), (4115, 63252), (4518, 57610), (4938, 52710), (5020, 51849), (5271, 49380), (5761, 45180), (7028, 37035), (7407, 35140), (7530, 34566), (8230, 31626), (8785, 29628), (9036, 28805), (9876, 26355), (10542, 24690), (11295, 23044), (11522, 22590), (12345, 21084), (14814, 17570), (15060, 17283), (15813, 16460)]