641201880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{2441}}^1$

素因数の和:2665

約数の個数: 128

約数和(自身を含む): 2109888000

約数和(自身を除く): 1468686120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 110, 120, 132, 165, 199, 220, 264, 330, 398, 440, 597, 660, 796, 995, 1194, 1320, 1592, 1990, 2189, 2388, 2441, 2985, 3980, 4378, 4776, 4882, 5970, 6567, 7323, 7960, 8756, 9764, 10945, 11940, 12205, 13134, 14646, 17512, 19528, 21890, 23880, 24410, 26268, 26851, 29292, 32835, 36615, 43780, 48820, 52536, 53702, 58584, 65670, 73230, 80553, 87560, 97640, 107404, 131340, 134255, 146460, 161106, 214808, 262680, 268510, 292920, 322212, 402765, 485759, 537020, 644424, 805530, 971518, 1074040, 1457277, 1611060, 1943036, 2428795, 2914554, 3222120, 3886072, 4857590, 5343349, 5829108, 7286385, 9715180, 10686698, 11658216, 14572770, 16030047, 19430360, 21373396, 26716745, 29145540, 32060094, 42746792, 53433490, 58291080, 64120188, 80150235, 106866980, 128240376, 160300470, 213733960, 320600940, 641201880]

約数ペア:

[(1, 641201880), (2, 320600940), (3, 213733960), (4, 160300470), (5, 128240376), (6, 106866980), (8, 80150235), (10, 64120188), (11, 58291080), (12, 53433490), (15, 42746792), (20, 32060094), (22, 29145540), (24, 26716745), (30, 21373396), (33, 19430360), (40, 16030047), (44, 14572770), (55, 11658216), (60, 10686698), (66, 9715180), (88, 7286385), (110, 5829108), (120, 5343349), (132, 4857590), (165, 3886072), (199, 3222120), (220, 2914554), (264, 2428795), (330, 1943036), (398, 1611060), (440, 1457277), (597, 1074040), (660, 971518), (796, 805530), (995, 644424), (1194, 537020), (1320, 485759), (1592, 402765), (1990, 322212), (2189, 292920), (2388, 268510), (2441, 262680), (2985, 214808), (3980, 161106), (4378, 146460), (4776, 134255), (4882, 131340), (5970, 107404), (6567, 97640), (7323, 87560), (7960, 80553), (8756, 73230), (9764, 65670), (10945, 58584), (11940, 53702), (12205, 52536), (13134, 48820), (14646, 43780), (17512, 36615), (19528, 32835), (21890, 29292), (23880, 26851), (24410, 26268)]