849985280

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^2\times {\mathrm{691}}^1$

素因数の和:774

約数の個数: 108

約数和(自身を含む): 2106820296

約数和(自身を除く): 1256835016

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 620, 640, 691, 961, 992, 1240, 1280, 1382, 1922, 1984, 2480, 2764, 3455, 3844, 3968, 4805, 4960, 5528, 6910, 7688, 7936, 9610, 9920, 11056, 13820, 15376, 19220, 19840, 21421, 22112, 27640, 30752, 38440, 39680, 42842, 44224, 55280, 61504, 76880, 85684, 88448, 107105, 110560, 123008, 153760, 171368, 176896, 214210, 221120, 246016, 307520, 342736, 428420, 442240, 615040, 664051, 685472, 856840, 884480, 1230080, 1328102, 1370944, 1713680, 2656204, 2741888, 3320255, 3427360, 5312408, 5483776, 6640510, 6854720, 10624816, 13281020, 13709440, 21249632, 26562040, 27418880, 42499264, 53124080, 84998528, 106248160, 169997056, 212496320, 424992640, 849985280]

約数ペア:

[(1, 849985280), (2, 424992640), (4, 212496320), (5, 169997056), (8, 106248160), (10, 84998528), (16, 53124080), (20, 42499264), (31, 27418880), (32, 26562040), (40, 21249632), (62, 13709440), (64, 13281020), (80, 10624816), (124, 6854720), (128, 6640510), (155, 5483776), (160, 5312408), (248, 3427360), (256, 3320255), (310, 2741888), (320, 2656204), (496, 1713680), (620, 1370944), (640, 1328102), (691, 1230080), (961, 884480), (992, 856840), (1240, 685472), (1280, 664051), (1382, 615040), (1922, 442240), (1984, 428420), (2480, 342736), (2764, 307520), (3455, 246016), (3844, 221120), (3968, 214210), (4805, 176896), (4960, 171368), (5528, 153760), (6910, 123008), (7688, 110560), (7936, 107105), (9610, 88448), (9920, 85684), (11056, 76880), (13820, 61504), (15376, 55280), (19220, 44224), (19840, 42842), (21421, 39680), (22112, 38440), (27640, 30752)]