81643800

素因数分解:

$2^3\times 3^1\times 5^2\times 7^2\times {\mathrm{2777}}^1$

素因数の和:2810

約数の個数: 144

約数和(自身を含む): 294523560

約数和(自身を除く): 212879760

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 25, 28, 30, 35, 40, 42, 49, 50, 56, 60, 70, 75, 84, 98, 100, 105, 120, 140, 147, 150, 168, 175, 196, 200, 210, 245, 280, 294, 300, 350, 392, 420, 490, 525, 588, 600, 700, 735, 840, 980, 1050, 1176, 1225, 1400, 1470, 1960, 2100, 2450, 2777, 2940, 3675, 4200, 4900, 5554, 5880, 7350, 8331, 9800, 11108, 13885, 14700, 16662, 19439, 22216, 27770, 29400, 33324, 38878, 41655, 55540, 58317, 66648, 69425, 77756, 83310, 97195, 111080, 116634, 136073, 138850, 155512, 166620, 194390, 208275, 233268, 272146, 277700, 291585, 333240, 388780, 408219, 416550, 466536, 485975, 544292, 555400, 583170, 680365, 777560, 816438, 833100, 971950, 1088584, 1166340, 1360730, 1457925, 1632876, 1666200, 1943900, 2041095, 2332680, 2721460, 2915850, 3265752, 3401825, 3887800, 4082190, 5442920, 5831700, 6803650, 8164380, 10205475, 11663400, 13607300, 16328760, 20410950, 27214600, 40821900, 81643800]

約数ペア:

[(1, 81643800), (2, 40821900), (3, 27214600), (4, 20410950), (5, 16328760), (6, 13607300), (7, 11663400), (8, 10205475), (10, 8164380), (12, 6803650), (14, 5831700), (15, 5442920), (20, 4082190), (21, 3887800), (24, 3401825), (25, 3265752), (28, 2915850), (30, 2721460), (35, 2332680), (40, 2041095), (42, 1943900), (49, 1666200), (50, 1632876), (56, 1457925), (60, 1360730), (70, 1166340), (75, 1088584), (84, 971950), (98, 833100), (100, 816438), (105, 777560), (120, 680365), (140, 583170), (147, 555400), (150, 544292), (168, 485975), (175, 466536), (196, 416550), (200, 408219), (210, 388780), (245, 333240), (280, 291585), (294, 277700), (300, 272146), (350, 233268), (392, 208275), (420, 194390), (490, 166620), (525, 155512), (588, 138850), (600, 136073), (700, 116634), (735, 111080), (840, 97195), (980, 83310), (1050, 77756), (1176, 69425), (1225, 66648), (1400, 58317), (1470, 55540), (1960, 41655), (2100, 38878), (2450, 33324), (2777, 29400), (2940, 27770), (3675, 22216), (4200, 19439), (4900, 16662), (5554, 14700), (5880, 13885), (7350, 11108), (8331, 9800)]