208589640

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{1039}}^1$

素因数の和:1299

約数の個数: 128

約数和(自身を含む): 718848000

約数和(自身を除く): 510258360

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 239, 280, 420, 478, 717, 840, 956, 1039, 1195, 1434, 1673, 1912, 2078, 2390, 2868, 3117, 3346, 3585, 4156, 4780, 5019, 5195, 5736, 6234, 6692, 7170, 7273, 8312, 8365, 9560, 10038, 10390, 12468, 13384, 14340, 14546, 15585, 16730, 20076, 20780, 21819, 24936, 25095, 28680, 29092, 31170, 33460, 36365, 40152, 41560, 43638, 50190, 58184, 62340, 66920, 72730, 87276, 100380, 109095, 124680, 145460, 174552, 200760, 218190, 248321, 290920, 436380, 496642, 744963, 872760, 993284, 1241605, 1489926, 1738247, 1986568, 2483210, 2979852, 3476494, 3724815, 4966420, 5214741, 5959704, 6952988, 7449630, 8691235, 9932840, 10429482, 13905976, 14899260, 17382470, 20858964, 26073705, 29798520, 34764940, 41717928, 52147410, 69529880, 104294820, 208589640]

約数ペア:

[(1, 208589640), (2, 104294820), (3, 69529880), (4, 52147410), (5, 41717928), (6, 34764940), (7, 29798520), (8, 26073705), (10, 20858964), (12, 17382470), (14, 14899260), (15, 13905976), (20, 10429482), (21, 9932840), (24, 8691235), (28, 7449630), (30, 6952988), (35, 5959704), (40, 5214741), (42, 4966420), (56, 3724815), (60, 3476494), (70, 2979852), (84, 2483210), (105, 1986568), (120, 1738247), (140, 1489926), (168, 1241605), (210, 993284), (239, 872760), (280, 744963), (420, 496642), (478, 436380), (717, 290920), (840, 248321), (956, 218190), (1039, 200760), (1195, 174552), (1434, 145460), (1673, 124680), (1912, 109095), (2078, 100380), (2390, 87276), (2868, 72730), (3117, 66920), (3346, 62340), (3585, 58184), (4156, 50190), (4780, 43638), (5019, 41560), (5195, 40152), (5736, 36365), (6234, 33460), (6692, 31170), (7170, 29092), (7273, 28680), (8312, 25095), (8365, 24936), (9560, 21819), (10038, 20780), (10390, 20076), (12468, 16730), (13384, 15585), (14340, 14546)]