217121580

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{197}}^1$

素因数の和:385

約数の個数: 192

約数和(自身を含む): 735799680

約数和(自身を除く): 518678100

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 27, 30, 36, 39, 45, 52, 54, 60, 65, 78, 90, 108, 117, 130, 135, 156, 157, 180, 195, 197, 234, 260, 270, 314, 351, 390, 394, 468, 471, 540, 585, 591, 628, 702, 780, 785, 788, 942, 985, 1170, 1182, 1404, 1413, 1570, 1755, 1773, 1884, 1970, 2041, 2340, 2355, 2364, 2561, 2826, 2955, 3140, 3510, 3546, 3940, 4082, 4239, 4710, 5122, 5319, 5652, 5910, 6123, 7020, 7065, 7092, 7683, 8164, 8478, 8865, 9420, 10205, 10244, 10638, 11820, 12246, 12805, 14130, 15366, 16956, 17730, 18369, 20410, 21195, 21276, 23049, 24492, 25610, 26595, 28260, 30615, 30732, 30929, 35460, 36738, 38415, 40820, 42390, 46098, 51220, 53190, 55107, 61230, 61858, 69147, 73476, 76830, 84780, 91845, 92196, 92787, 106380, 110214, 115245, 122460, 123716, 138294, 153660, 154645, 183690, 185574, 220428, 230490, 275535, 276588, 278361, 309290, 345735, 367380, 371148, 402077, 460980, 463935, 551070, 556722, 618580, 691470, 804154, 835083, 927870, 1102140, 1113444, 1206231, 1382940, 1391805, 1608308, 1670166, 1855740, 2010385, 2412462, 2783610, 3340332, 3618693, 4020770, 4175415, 4824924, 5567220, 6031155, 7237386, 8041540, 8350830, 10856079, 12062310, 14474772, 16701660, 18093465, 21712158, 24124620, 36186930, 43424316, 54280395, 72373860, 108560790, 217121580]

約数ペア:

[(1, 217121580), (2, 108560790), (3, 72373860), (4, 54280395), (5, 43424316), (6, 36186930), (9, 24124620), (10, 21712158), (12, 18093465), (13, 16701660), (15, 14474772), (18, 12062310), (20, 10856079), (26, 8350830), (27, 8041540), (30, 7237386), (36, 6031155), (39, 5567220), (45, 4824924), (52, 4175415), (54, 4020770), (60, 3618693), (65, 3340332), (78, 2783610), (90, 2412462), (108, 2010385), (117, 1855740), (130, 1670166), (135, 1608308), (156, 1391805), (157, 1382940), (180, 1206231), (195, 1113444), (197, 1102140), (234, 927870), (260, 835083), (270, 804154), (314, 691470), (351, 618580), (390, 556722), (394, 551070), (468, 463935), (471, 460980), (540, 402077), (585, 371148), (591, 367380), (628, 345735), (702, 309290), (780, 278361), (785, 276588), (788, 275535), (942, 230490), (985, 220428), (1170, 185574), (1182, 183690), (1404, 154645), (1413, 153660), (1570, 138294), (1755, 123716), (1773, 122460), (1884, 115245), (1970, 110214), (2041, 106380), (2340, 92787), (2355, 92196), (2364, 91845), (2561, 84780), (2826, 76830), (2955, 73476), (3140, 69147), (3510, 61858), (3546, 61230), (3940, 55107), (4082, 53190), (4239, 51220), (4710, 46098), (5122, 42390), (5319, 40820), (5652, 38415), (5910, 36738), (6123, 35460), (7020, 30929), (7065, 30732), (7092, 30615), (7683, 28260), (8164, 26595), (8478, 25610), (8865, 24492), (9420, 23049), (10205, 21276), (10244, 21195), (10638, 20410), (11820, 18369), (12246, 17730), (12805, 16956), (14130, 15366)]