28703520

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{643}}^1$

素因数の和:695

約数の個数: 144

約数和(自身を含む): 101267712

約数和(自身を除く): 72564192

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 31, 32, 36, 40, 45, 48, 60, 62, 72, 80, 90, 93, 96, 120, 124, 144, 155, 160, 180, 186, 240, 248, 279, 288, 310, 360, 372, 465, 480, 496, 558, 620, 643, 720, 744, 930, 992, 1116, 1240, 1286, 1395, 1440, 1488, 1860, 1929, 2232, 2480, 2572, 2790, 2976, 3215, 3720, 3858, 4464, 4960, 5144, 5580, 5787, 6430, 7440, 7716, 8928, 9645, 10288, 11160, 11574, 12860, 14880, 15432, 19290, 19933, 20576, 22320, 23148, 25720, 28935, 30864, 38580, 39866, 44640, 46296, 51440, 57870, 59799, 61728, 77160, 79732, 92592, 99665, 102880, 115740, 119598, 154320, 159464, 179397, 185184, 199330, 231480, 239196, 298995, 308640, 318928, 358794, 398660, 462960, 478392, 597990, 637856, 717588, 797320, 896985, 925920, 956784, 1195980, 1435176, 1594640, 1793970, 1913568, 2391960, 2870352, 3189280, 3587940, 4783920, 5740704, 7175880, 9567840, 14351760, 28703520]

約数ペア:

[(1, 28703520), (2, 14351760), (3, 9567840), (4, 7175880), (5, 5740704), (6, 4783920), (8, 3587940), (9, 3189280), (10, 2870352), (12, 2391960), (15, 1913568), (16, 1793970), (18, 1594640), (20, 1435176), (24, 1195980), (30, 956784), (31, 925920), (32, 896985), (36, 797320), (40, 717588), (45, 637856), (48, 597990), (60, 478392), (62, 462960), (72, 398660), (80, 358794), (90, 318928), (93, 308640), (96, 298995), (120, 239196), (124, 231480), (144, 199330), (155, 185184), (160, 179397), (180, 159464), (186, 154320), (240, 119598), (248, 115740), (279, 102880), (288, 99665), (310, 92592), (360, 79732), (372, 77160), (465, 61728), (480, 59799), (496, 57870), (558, 51440), (620, 46296), (643, 44640), (720, 39866), (744, 38580), (930, 30864), (992, 28935), (1116, 25720), (1240, 23148), (1286, 22320), (1395, 20576), (1440, 19933), (1488, 19290), (1860, 15432), (1929, 14880), (2232, 12860), (2480, 11574), (2572, 11160), (2790, 10288), (2976, 9645), (3215, 8928), (3720, 7716), (3858, 7440), (4464, 6430), (4960, 5787), (5144, 5580)]