280415080

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^3\times {\mathrm{23}}^1\times {\mathrm{229}}^1$

素因数の和:296

約数の個数: 128

約数和(自身を含む): 727315200

約数和(自身を除く): 446900120

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 23, 40, 44, 46, 55, 88, 92, 110, 115, 121, 184, 220, 229, 230, 242, 253, 440, 458, 460, 484, 506, 605, 916, 920, 968, 1012, 1145, 1210, 1265, 1331, 1832, 2024, 2290, 2420, 2519, 2530, 2662, 2783, 4580, 4840, 5038, 5060, 5267, 5324, 5566, 6655, 9160, 10076, 10120, 10534, 10648, 11132, 12595, 13310, 13915, 20152, 21068, 22264, 25190, 26335, 26620, 27709, 27830, 30613, 42136, 50380, 52670, 53240, 55418, 55660, 57937, 61226, 100760, 105340, 110836, 111320, 115874, 122452, 138545, 153065, 210680, 221672, 231748, 244904, 277090, 289685, 304799, 306130, 463496, 554180, 579370, 609598, 612260, 637307, 1108360, 1158740, 1219196, 1224520, 1274614, 1523995, 2317480, 2438392, 2549228, 3047990, 3186535, 5098456, 6095980, 6373070, 7010377, 12191960, 12746140, 14020754, 25492280, 28041508, 35051885, 56083016, 70103770, 140207540, 280415080]

約数ペア:

[(1, 280415080), (2, 140207540), (4, 70103770), (5, 56083016), (8, 35051885), (10, 28041508), (11, 25492280), (20, 14020754), (22, 12746140), (23, 12191960), (40, 7010377), (44, 6373070), (46, 6095980), (55, 5098456), (88, 3186535), (92, 3047990), (110, 2549228), (115, 2438392), (121, 2317480), (184, 1523995), (220, 1274614), (229, 1224520), (230, 1219196), (242, 1158740), (253, 1108360), (440, 637307), (458, 612260), (460, 609598), (484, 579370), (506, 554180), (605, 463496), (916, 306130), (920, 304799), (968, 289685), (1012, 277090), (1145, 244904), (1210, 231748), (1265, 221672), (1331, 210680), (1832, 153065), (2024, 138545), (2290, 122452), (2420, 115874), (2519, 111320), (2530, 110836), (2662, 105340), (2783, 100760), (4580, 61226), (4840, 57937), (5038, 55660), (5060, 55418), (5267, 53240), (5324, 52670), (5566, 50380), (6655, 42136), (9160, 30613), (10076, 27830), (10120, 27709), (10534, 26620), (10648, 26335), (11132, 25190), (12595, 22264), (13310, 21068), (13915, 20152)]