280440

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1$

素因数の和:77

約数の個数: 96

約数和(自身を含む): 982800

約数和(自身を除く): 702360

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 24, 30, 36, 38, 40, 41, 45, 57, 60, 72, 76, 82, 90, 95, 114, 120, 123, 152, 164, 171, 180, 190, 205, 228, 246, 285, 328, 342, 360, 369, 380, 410, 456, 492, 570, 615, 684, 738, 760, 779, 820, 855, 984, 1140, 1230, 1368, 1476, 1558, 1640, 1710, 1845, 2280, 2337, 2460, 2952, 3116, 3420, 3690, 3895, 4674, 4920, 6232, 6840, 7011, 7380, 7790, 9348, 11685, 14022, 14760, 15580, 18696, 23370, 28044, 31160, 35055, 46740, 56088, 70110, 93480, 140220, 280440]

約数ペア:

[(1, 280440), (2, 140220), (3, 93480), (4, 70110), (5, 56088), (6, 46740), (8, 35055), (9, 31160), (10, 28044), (12, 23370), (15, 18696), (18, 15580), (19, 14760), (20, 14022), (24, 11685), (30, 9348), (36, 7790), (38, 7380), (40, 7011), (41, 6840), (45, 6232), (57, 4920), (60, 4674), (72, 3895), (76, 3690), (82, 3420), (90, 3116), (95, 2952), (114, 2460), (120, 2337), (123, 2280), (152, 1845), (164, 1710), (171, 1640), (180, 1558), (190, 1476), (205, 1368), (228, 1230), (246, 1140), (285, 984), (328, 855), (342, 820), (360, 779), (369, 760), (380, 738), (410, 684), (456, 615), (492, 570)]