280563120

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{20509}}^1$

素因数の和:20547

約数の個数: 120

約数和(自身を含む): 991863600

約数和(自身を除く): 711300480

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 30, 36, 38, 40, 45, 48, 57, 60, 72, 76, 80, 90, 95, 114, 120, 144, 152, 171, 180, 190, 228, 240, 285, 304, 342, 360, 380, 456, 570, 684, 720, 760, 855, 912, 1140, 1368, 1520, 1710, 2280, 2736, 3420, 4560, 6840, 13680, 20509, 41018, 61527, 82036, 102545, 123054, 164072, 184581, 205090, 246108, 307635, 328144, 369162, 389671, 410180, 492216, 615270, 738324, 779342, 820360, 922905, 984432, 1169013, 1230540, 1476648, 1558684, 1640720, 1845810, 1948355, 2338026, 2461080, 2953296, 3117368, 3507039, 3691620, 3896710, 4676052, 4922160, 5845065, 6234736, 7014078, 7383240, 7793420, 9352104, 11690130, 14028156, 14766480, 15586840, 17535195, 18704208, 23380260, 28056312, 31173680, 35070390, 46760520, 56112624, 70140780, 93521040, 140281560, 280563120]

約数ペア:

[(1, 280563120), (2, 140281560), (3, 93521040), (4, 70140780), (5, 56112624), (6, 46760520), (8, 35070390), (9, 31173680), (10, 28056312), (12, 23380260), (15, 18704208), (16, 17535195), (18, 15586840), (19, 14766480), (20, 14028156), (24, 11690130), (30, 9352104), (36, 7793420), (38, 7383240), (40, 7014078), (45, 6234736), (48, 5845065), (57, 4922160), (60, 4676052), (72, 3896710), (76, 3691620), (80, 3507039), (90, 3117368), (95, 2953296), (114, 2461080), (120, 2338026), (144, 1948355), (152, 1845810), (171, 1640720), (180, 1558684), (190, 1476648), (228, 1230540), (240, 1169013), (285, 984432), (304, 922905), (342, 820360), (360, 779342), (380, 738324), (456, 615270), (570, 492216), (684, 410180), (720, 389671), (760, 369162), (855, 328144), (912, 307635), (1140, 246108), (1368, 205090), (1520, 184581), (1710, 164072), (2280, 123054), (2736, 102545), (3420, 82036), (4560, 61527), (6840, 41018), (13680, 20509)]