221222820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1307}}^1$

素因数の和:1370

約数の個数: 192

約数和(自身を含む): 787562496

約数和(自身を除く): 566339676

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 31, 35, 39, 42, 52, 60, 62, 65, 70, 78, 84, 91, 93, 105, 124, 130, 140, 155, 156, 182, 186, 195, 210, 217, 260, 273, 310, 364, 372, 390, 403, 420, 434, 455, 465, 546, 620, 651, 780, 806, 868, 910, 930, 1085, 1092, 1209, 1302, 1307, 1365, 1612, 1820, 1860, 2015, 2170, 2418, 2604, 2614, 2730, 2821, 3255, 3921, 4030, 4340, 4836, 5228, 5460, 5642, 6045, 6510, 6535, 7842, 8060, 8463, 9149, 11284, 12090, 13020, 13070, 14105, 15684, 16926, 16991, 18298, 19605, 24180, 26140, 27447, 28210, 33852, 33982, 36596, 39210, 40517, 42315, 45745, 50973, 54894, 56420, 67964, 78420, 81034, 84630, 84955, 91490, 101946, 109788, 118937, 121551, 137235, 162068, 169260, 169910, 182980, 202585, 203892, 237874, 243102, 254865, 274470, 283619, 339820, 356811, 405170, 475748, 486204, 509730, 526721, 548940, 567238, 594685, 607755, 713622, 810340, 850857, 1019460, 1053442, 1134476, 1189370, 1215510, 1418095, 1427244, 1580163, 1701714, 1784055, 2106884, 2378740, 2431020, 2633605, 2836190, 3160326, 3403428, 3568110, 3687047, 4254285, 5267210, 5672380, 6320652, 7136220, 7374094, 7900815, 8508570, 10534420, 11061141, 14748188, 15801630, 17017140, 18435235, 22122282, 31603260, 36870470, 44244564, 55305705, 73740940, 110611410, 221222820]

約数ペア:

[(1, 221222820), (2, 110611410), (3, 73740940), (4, 55305705), (5, 44244564), (6, 36870470), (7, 31603260), (10, 22122282), (12, 18435235), (13, 17017140), (14, 15801630), (15, 14748188), (20, 11061141), (21, 10534420), (26, 8508570), (28, 7900815), (30, 7374094), (31, 7136220), (35, 6320652), (39, 5672380), (42, 5267210), (52, 4254285), (60, 3687047), (62, 3568110), (65, 3403428), (70, 3160326), (78, 2836190), (84, 2633605), (91, 2431020), (93, 2378740), (105, 2106884), (124, 1784055), (130, 1701714), (140, 1580163), (155, 1427244), (156, 1418095), (182, 1215510), (186, 1189370), (195, 1134476), (210, 1053442), (217, 1019460), (260, 850857), (273, 810340), (310, 713622), (364, 607755), (372, 594685), (390, 567238), (403, 548940), (420, 526721), (434, 509730), (455, 486204), (465, 475748), (546, 405170), (620, 356811), (651, 339820), (780, 283619), (806, 274470), (868, 254865), (910, 243102), (930, 237874), (1085, 203892), (1092, 202585), (1209, 182980), (1302, 169910), (1307, 169260), (1365, 162068), (1612, 137235), (1820, 121551), (1860, 118937), (2015, 109788), (2170, 101946), (2418, 91490), (2604, 84955), (2614, 84630), (2730, 81034), (2821, 78420), (3255, 67964), (3921, 56420), (4030, 54894), (4340, 50973), (4836, 45745), (5228, 42315), (5460, 40517), (5642, 39210), (6045, 36596), (6510, 33982), (6535, 33852), (7842, 28210), (8060, 27447), (8463, 26140), (9149, 24180), (11284, 19605), (12090, 18298), (13020, 16991), (13070, 16926), (14105, 15684)]