81368820

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{173}}^1$

素因数の和:271

約数の個数: 192

約数和(自身を含む): 278288640

約数和(自身を除く): 196919820

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, 67, 78, 90, 108, 117, 130, 134, 135, 156, 173, 180, 195, 201, 234, 260, 268, 270, 335, 346, 351, 390, 402, 468, 519, 540, 585, 603, 670, 692, 702, 780, 804, 865, 871, 1005, 1038, 1170, 1206, 1340, 1404, 1557, 1730, 1742, 1755, 1809, 2010, 2076, 2249, 2340, 2412, 2595, 2613, 3015, 3114, 3460, 3484, 3510, 3618, 4020, 4355, 4498, 4671, 5190, 5226, 6030, 6228, 6747, 7020, 7236, 7785, 7839, 8710, 8996, 9045, 9342, 10380, 10452, 11245, 11591, 12060, 13065, 13494, 15570, 15678, 17420, 18090, 18684, 20241, 22490, 23182, 23355, 23517, 26130, 26988, 31140, 31356, 33735, 34773, 36180, 39195, 40482, 44980, 46364, 46710, 47034, 52260, 57955, 60723, 67470, 69546, 78390, 80964, 93420, 94068, 101205, 104319, 115910, 117585, 121446, 134940, 139092, 150683, 156780, 173865, 202410, 208638, 231820, 235170, 242892, 301366, 303615, 312957, 347730, 404820, 417276, 452049, 470340, 521595, 602732, 607230, 625914, 695460, 753415, 904098, 1043190, 1214460, 1251828, 1356147, 1506830, 1564785, 1808196, 2086380, 2260245, 2712294, 3013660, 3129570, 4068441, 4520490, 5424588, 6259140, 6780735, 8136882, 9040980, 13561470, 16273764, 20342205, 27122940, 40684410, 81368820]

約数ペア:

[(1, 81368820), (2, 40684410), (3, 27122940), (4, 20342205), (5, 16273764), (6, 13561470), (9, 9040980), (10, 8136882), (12, 6780735), (13, 6259140), (15, 5424588), (18, 4520490), (20, 4068441), (26, 3129570), (27, 3013660), (30, 2712294), (36, 2260245), (39, 2086380), (45, 1808196), (52, 1564785), (54, 1506830), (60, 1356147), (65, 1251828), (67, 1214460), (78, 1043190), (90, 904098), (108, 753415), (117, 695460), (130, 625914), (134, 607230), (135, 602732), (156, 521595), (173, 470340), (180, 452049), (195, 417276), (201, 404820), (234, 347730), (260, 312957), (268, 303615), (270, 301366), (335, 242892), (346, 235170), (351, 231820), (390, 208638), (402, 202410), (468, 173865), (519, 156780), (540, 150683), (585, 139092), (603, 134940), (670, 121446), (692, 117585), (702, 115910), (780, 104319), (804, 101205), (865, 94068), (871, 93420), (1005, 80964), (1038, 78390), (1170, 69546), (1206, 67470), (1340, 60723), (1404, 57955), (1557, 52260), (1730, 47034), (1742, 46710), (1755, 46364), (1809, 44980), (2010, 40482), (2076, 39195), (2249, 36180), (2340, 34773), (2412, 33735), (2595, 31356), (2613, 31140), (3015, 26988), (3114, 26130), (3460, 23517), (3484, 23355), (3510, 23182), (3618, 22490), (4020, 20241), (4355, 18684), (4498, 18090), (4671, 17420), (5190, 15678), (5226, 15570), (6030, 13494), (6228, 13065), (6747, 12060), (7020, 11591), (7236, 11245), (7785, 10452), (7839, 10380), (8710, 9342), (8996, 9045)]