20174700

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{739}}^1$

素因数の和:776

約数の個数: 144

約数和(自身を含む): 71939840

約数和(自身を除く): 51765140

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 25, 26, 28, 30, 35, 39, 42, 50, 52, 60, 65, 70, 75, 78, 84, 91, 100, 105, 130, 140, 150, 156, 175, 182, 195, 210, 260, 273, 300, 325, 350, 364, 390, 420, 455, 525, 546, 650, 700, 739, 780, 910, 975, 1050, 1092, 1300, 1365, 1478, 1820, 1950, 2100, 2217, 2275, 2730, 2956, 3695, 3900, 4434, 4550, 5173, 5460, 6825, 7390, 8868, 9100, 9607, 10346, 11085, 13650, 14780, 15519, 18475, 19214, 20692, 22170, 25865, 27300, 28821, 31038, 36950, 38428, 44340, 48035, 51730, 55425, 57642, 62076, 67249, 73900, 77595, 96070, 103460, 110850, 115284, 129325, 134498, 144105, 155190, 192140, 201747, 221700, 240175, 258650, 268996, 288210, 310380, 336245, 387975, 403494, 480350, 517300, 576420, 672490, 720525, 775950, 806988, 960700, 1008735, 1344980, 1441050, 1551900, 1681225, 2017470, 2882100, 3362450, 4034940, 5043675, 6724900, 10087350, 20174700]

約数ペア:

[(1, 20174700), (2, 10087350), (3, 6724900), (4, 5043675), (5, 4034940), (6, 3362450), (7, 2882100), (10, 2017470), (12, 1681225), (13, 1551900), (14, 1441050), (15, 1344980), (20, 1008735), (21, 960700), (25, 806988), (26, 775950), (28, 720525), (30, 672490), (35, 576420), (39, 517300), (42, 480350), (50, 403494), (52, 387975), (60, 336245), (65, 310380), (70, 288210), (75, 268996), (78, 258650), (84, 240175), (91, 221700), (100, 201747), (105, 192140), (130, 155190), (140, 144105), (150, 134498), (156, 129325), (175, 115284), (182, 110850), (195, 103460), (210, 96070), (260, 77595), (273, 73900), (300, 67249), (325, 62076), (350, 57642), (364, 55425), (390, 51730), (420, 48035), (455, 44340), (525, 38428), (546, 36950), (650, 31038), (700, 28821), (739, 27300), (780, 25865), (910, 22170), (975, 20692), (1050, 19214), (1092, 18475), (1300, 15519), (1365, 14780), (1478, 13650), (1820, 11085), (1950, 10346), (2100, 9607), (2217, 9100), (2275, 8868), (2730, 7390), (2956, 6825), (3695, 5460), (3900, 5173), (4434, 4550)]