279879120

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{499}}^1$

素因数の和:578

約数の個数: 240

約数和(自身を含む): 1015560000

約数和(自身を除く): 735680880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 30, 36, 38, 40, 41, 45, 48, 57, 60, 72, 76, 80, 82, 90, 95, 114, 120, 123, 144, 152, 164, 171, 180, 190, 205, 228, 240, 246, 285, 304, 328, 342, 360, 369, 380, 410, 456, 492, 499, 570, 615, 656, 684, 720, 738, 760, 779, 820, 855, 912, 984, 998, 1140, 1230, 1368, 1476, 1497, 1520, 1558, 1640, 1710, 1845, 1968, 1996, 2280, 2337, 2460, 2495, 2736, 2952, 2994, 3116, 3280, 3420, 3690, 3895, 3992, 4491, 4560, 4674, 4920, 4990, 5904, 5988, 6232, 6840, 7011, 7380, 7485, 7790, 7984, 8982, 9348, 9481, 9840, 9980, 11685, 11976, 12464, 13680, 14022, 14760, 14970, 15580, 17964, 18696, 18962, 19960, 20459, 22455, 23370, 23952, 28044, 28443, 29520, 29940, 31160, 35055, 35928, 37392, 37924, 39920, 40918, 44910, 46740, 47405, 56088, 56886, 59880, 61377, 62320, 70110, 71856, 75848, 81836, 85329, 89820, 93480, 94810, 102295, 112176, 113772, 119760, 122754, 140220, 142215, 151696, 163672, 170658, 179640, 184131, 186960, 189620, 204590, 227544, 245508, 280440, 284430, 306885, 327344, 341316, 359280, 368262, 379240, 388721, 409180, 426645, 455088, 491016, 560880, 568860, 613770, 682632, 736524, 758480, 777442, 818360, 853290, 920655, 982032, 1137720, 1166163, 1227540, 1365264, 1473048, 1554884, 1636720, 1706580, 1841310, 1943605, 2275440, 2332326, 2455080, 2946096, 3109768, 3413160, 3498489, 3682620, 3887210, 4664652, 4910160, 5830815, 6219536, 6826320, 6996978, 7365240, 7774420, 9329304, 11661630, 13993956, 14730480, 15548840, 17492445, 18658608, 23323260, 27987912, 31097680, 34984890, 46646520, 55975824, 69969780, 93293040, 139939560, 279879120]

約数ペア:

[(1, 279879120), (2, 139939560), (3, 93293040), (4, 69969780), (5, 55975824), (6, 46646520), (8, 34984890), (9, 31097680), (10, 27987912), (12, 23323260), (15, 18658608), (16, 17492445), (18, 15548840), (19, 14730480), (20, 13993956), (24, 11661630), (30, 9329304), (36, 7774420), (38, 7365240), (40, 6996978), (41, 6826320), (45, 6219536), (48, 5830815), (57, 4910160), (60, 4664652), (72, 3887210), (76, 3682620), (80, 3498489), (82, 3413160), (90, 3109768), (95, 2946096), (114, 2455080), (120, 2332326), (123, 2275440), (144, 1943605), (152, 1841310), (164, 1706580), (171, 1636720), (180, 1554884), (190, 1473048), (205, 1365264), (228, 1227540), (240, 1166163), (246, 1137720), (285, 982032), (304, 920655), (328, 853290), (342, 818360), (360, 777442), (369, 758480), (380, 736524), (410, 682632), (456, 613770), (492, 568860), (499, 560880), (570, 491016), (615, 455088), (656, 426645), (684, 409180), (720, 388721), (738, 379240), (760, 368262), (779, 359280), (820, 341316), (855, 327344), (912, 306885), (984, 284430), (998, 280440), (1140, 245508), (1230, 227544), (1368, 204590), (1476, 189620), (1497, 186960), (1520, 184131), (1558, 179640), (1640, 170658), (1710, 163672), (1845, 151696), (1968, 142215), (1996, 140220), (2280, 122754), (2337, 119760), (2460, 113772), (2495, 112176), (2736, 102295), (2952, 94810), (2994, 93480), (3116, 89820), (3280, 85329), (3420, 81836), (3690, 75848), (3895, 71856), (3992, 70110), (4491, 62320), (4560, 61377), (4674, 59880), (4920, 56886), (4990, 56088), (5904, 47405), (5988, 46740), (6232, 44910), (6840, 40918), (7011, 39920), (7380, 37924), (7485, 37392), (7790, 35928), (7984, 35055), (8982, 31160), (9348, 29940), (9481, 29520), (9840, 28443), (9980, 28044), (11685, 23952), (11976, 23370), (12464, 22455), (13680, 20459), (14022, 19960), (14760, 18962), (14970, 18696), (15580, 17964)]