281219760

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{337}}^1$

素因数の和:436

約数の個数: 240

約数和(自身を含む): 1013432160

約数和(自身を除く): 732212400

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, 61, 72, 76, 80, 90, 95, 114, 120, 122, 144, 152, 171, 180, 183, 190, 228, 240, 244, 285, 304, 305, 337, 342, 360, 366, 380, 456, 488, 549, 570, 610, 674, 684, 720, 732, 760, 855, 912, 915, 976, 1011, 1098, 1140, 1159, 1220, 1348, 1368, 1464, 1520, 1685, 1710, 1830, 2022, 2196, 2280, 2318, 2440, 2696, 2736, 2745, 2928, 3033, 3370, 3420, 3477, 3660, 4044, 4392, 4560, 4636, 4880, 5055, 5392, 5490, 5795, 6066, 6403, 6740, 6840, 6954, 7320, 8088, 8784, 9272, 10110, 10431, 10980, 11590, 12132, 12806, 13480, 13680, 13908, 14640, 15165, 16176, 17385, 18544, 19209, 20220, 20557, 20862, 21960, 23180, 24264, 25612, 26960, 27816, 30330, 32015, 34770, 38418, 40440, 41114, 41724, 43920, 46360, 48528, 51224, 52155, 55632, 57627, 60660, 61671, 64030, 69540, 76836, 80880, 82228, 83448, 92720, 96045, 102448, 102785, 104310, 115254, 121320, 123342, 128060, 139080, 153672, 164456, 166896, 185013, 192090, 205570, 208620, 230508, 242640, 246684, 256120, 278160, 288135, 307344, 308355, 328912, 370026, 384180, 390583, 411140, 417240, 461016, 493368, 512240, 576270, 616710, 740052, 768360, 781166, 822280, 834480, 922032, 925065, 986736, 1152540, 1171749, 1233420, 1480104, 1536720, 1562332, 1644560, 1850130, 1952915, 2305080, 2343498, 2466840, 2960208, 3124664, 3515247, 3700260, 3905830, 4610160, 4686996, 4933680, 5858745, 6249328, 7030494, 7400520, 7811660, 9373992, 11717490, 14060988, 14801040, 15623320, 17576235, 18747984, 23434980, 28121976, 31246640, 35152470, 46869960, 56243952, 70304940, 93739920, 140609880, 281219760]

約数ペア:

[(1, 281219760), (2, 140609880), (3, 93739920), (4, 70304940), (5, 56243952), (6, 46869960), (8, 35152470), (9, 31246640), (10, 28121976), (12, 23434980), (15, 18747984), (16, 17576235), (18, 15623320), (19, 14801040), (20, 14060988), (24, 11717490), (30, 9373992), (36, 7811660), (38, 7400520), (40, 7030494), (45, 6249328), (48, 5858745), (57, 4933680), (60, 4686996), (61, 4610160), (72, 3905830), (76, 3700260), (80, 3515247), (90, 3124664), (95, 2960208), (114, 2466840), (120, 2343498), (122, 2305080), (144, 1952915), (152, 1850130), (171, 1644560), (180, 1562332), (183, 1536720), (190, 1480104), (228, 1233420), (240, 1171749), (244, 1152540), (285, 986736), (304, 925065), (305, 922032), (337, 834480), (342, 822280), (360, 781166), (366, 768360), (380, 740052), (456, 616710), (488, 576270), (549, 512240), (570, 493368), (610, 461016), (674, 417240), (684, 411140), (720, 390583), (732, 384180), (760, 370026), (855, 328912), (912, 308355), (915, 307344), (976, 288135), (1011, 278160), (1098, 256120), (1140, 246684), (1159, 242640), (1220, 230508), (1348, 208620), (1368, 205570), (1464, 192090), (1520, 185013), (1685, 166896), (1710, 164456), (1830, 153672), (2022, 139080), (2196, 128060), (2280, 123342), (2318, 121320), (2440, 115254), (2696, 104310), (2736, 102785), (2745, 102448), (2928, 96045), (3033, 92720), (3370, 83448), (3420, 82228), (3477, 80880), (3660, 76836), (4044, 69540), (4392, 64030), (4560, 61671), (4636, 60660), (4880, 57627), (5055, 55632), (5392, 52155), (5490, 51224), (5795, 48528), (6066, 46360), (6403, 43920), (6740, 41724), (6840, 41114), (6954, 40440), (7320, 38418), (8088, 34770), (8784, 32015), (9272, 30330), (10110, 27816), (10431, 26960), (10980, 25612), (11590, 24264), (12132, 23180), (12806, 21960), (13480, 20862), (13680, 20557), (13908, 20220), (14640, 19209), (15165, 18544), (16176, 17385)]