400175280

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{17929}}^1$

素因数の和:17979

約数の個数: 120

約数和(自身を含む): 1387351680

約数和(自身を除く): 987176400

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 31, 36, 40, 45, 48, 60, 62, 72, 80, 90, 93, 120, 124, 144, 155, 180, 186, 240, 248, 279, 310, 360, 372, 465, 496, 558, 620, 720, 744, 930, 1116, 1240, 1395, 1488, 1860, 2232, 2480, 2790, 3720, 4464, 5580, 7440, 11160, 17929, 22320, 35858, 53787, 71716, 89645, 107574, 143432, 161361, 179290, 215148, 268935, 286864, 322722, 358580, 430296, 537870, 555799, 645444, 717160, 806805, 860592, 1075740, 1111598, 1290888, 1434320, 1613610, 1667397, 2151480, 2223196, 2581776, 2778995, 3227220, 3334794, 4302960, 4446392, 5002191, 5557990, 6454440, 6669588, 8336985, 8892784, 10004382, 11115980, 12908880, 13339176, 16673970, 20008764, 22231960, 25010955, 26678352, 33347940, 40017528, 44463920, 50021910, 66695880, 80035056, 100043820, 133391760, 200087640, 400175280]

約数ペア:

[(1, 400175280), (2, 200087640), (3, 133391760), (4, 100043820), (5, 80035056), (6, 66695880), (8, 50021910), (9, 44463920), (10, 40017528), (12, 33347940), (15, 26678352), (16, 25010955), (18, 22231960), (20, 20008764), (24, 16673970), (30, 13339176), (31, 12908880), (36, 11115980), (40, 10004382), (45, 8892784), (48, 8336985), (60, 6669588), (62, 6454440), (72, 5557990), (80, 5002191), (90, 4446392), (93, 4302960), (120, 3334794), (124, 3227220), (144, 2778995), (155, 2581776), (180, 2223196), (186, 2151480), (240, 1667397), (248, 1613610), (279, 1434320), (310, 1290888), (360, 1111598), (372, 1075740), (465, 860592), (496, 806805), (558, 717160), (620, 645444), (720, 555799), (744, 537870), (930, 430296), (1116, 358580), (1240, 322722), (1395, 286864), (1488, 268935), (1860, 215148), (2232, 179290), (2480, 161361), (2790, 143432), (3720, 107574), (4464, 89645), (5580, 71716), (7440, 53787), (11160, 35858), (17929, 22320)]