280865520

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{811}}^1$

素因数の和:880

約数の個数: 240

約数和(自身を含む): 1044537312

約数和(自身を除く): 763671792

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 36, 37, 39, 40, 45, 48, 52, 60, 65, 72, 74, 78, 80, 90, 104, 111, 117, 120, 130, 144, 148, 156, 180, 185, 195, 208, 222, 234, 240, 260, 296, 312, 333, 360, 370, 390, 444, 468, 481, 520, 555, 585, 592, 624, 666, 720, 740, 780, 811, 888, 936, 962, 1040, 1110, 1170, 1332, 1443, 1480, 1560, 1622, 1665, 1776, 1872, 1924, 2220, 2340, 2405, 2433, 2664, 2886, 2960, 3120, 3244, 3330, 3848, 4055, 4329, 4440, 4680, 4810, 4866, 5328, 5772, 6488, 6660, 7215, 7299, 7696, 8110, 8658, 8880, 9360, 9620, 9732, 10543, 11544, 12165, 12976, 13320, 14430, 14598, 16220, 17316, 19240, 19464, 21086, 21645, 23088, 24330, 26640, 28860, 29196, 30007, 31629, 32440, 34632, 36495, 38480, 38928, 42172, 43290, 48660, 52715, 57720, 58392, 60014, 63258, 64880, 69264, 72990, 84344, 86580, 90021, 94887, 97320, 105430, 115440, 116784, 120028, 126516, 145980, 150035, 158145, 168688, 173160, 180042, 189774, 194640, 210860, 240056, 253032, 270063, 291960, 300070, 316290, 346320, 360084, 379548, 390091, 421720, 450105, 474435, 480112, 506064, 540126, 583920, 600140, 632580, 720168, 759096, 780182, 843440, 900210, 948870, 1080252, 1170273, 1200280, 1265160, 1350315, 1440336, 1518192, 1560364, 1800420, 1897740, 1950455, 2160504, 2340546, 2400560, 2530320, 2700630, 3120728, 3510819, 3600840, 3795480, 3900910, 4321008, 4681092, 5401260, 5851365, 6241456, 7021638, 7201680, 7590960, 7801820, 9362184, 10802520, 11702730, 14043276, 15603640, 17554095, 18724368, 21605040, 23405460, 28086552, 31207280, 35108190, 46810920, 56173104, 70216380, 93621840, 140432760, 280865520]

約数ペア:

[(1, 280865520), (2, 140432760), (3, 93621840), (4, 70216380), (5, 56173104), (6, 46810920), (8, 35108190), (9, 31207280), (10, 28086552), (12, 23405460), (13, 21605040), (15, 18724368), (16, 17554095), (18, 15603640), (20, 14043276), (24, 11702730), (26, 10802520), (30, 9362184), (36, 7801820), (37, 7590960), (39, 7201680), (40, 7021638), (45, 6241456), (48, 5851365), (52, 5401260), (60, 4681092), (65, 4321008), (72, 3900910), (74, 3795480), (78, 3600840), (80, 3510819), (90, 3120728), (104, 2700630), (111, 2530320), (117, 2400560), (120, 2340546), (130, 2160504), (144, 1950455), (148, 1897740), (156, 1800420), (180, 1560364), (185, 1518192), (195, 1440336), (208, 1350315), (222, 1265160), (234, 1200280), (240, 1170273), (260, 1080252), (296, 948870), (312, 900210), (333, 843440), (360, 780182), (370, 759096), (390, 720168), (444, 632580), (468, 600140), (481, 583920), (520, 540126), (555, 506064), (585, 480112), (592, 474435), (624, 450105), (666, 421720), (720, 390091), (740, 379548), (780, 360084), (811, 346320), (888, 316290), (936, 300070), (962, 291960), (1040, 270063), (1110, 253032), (1170, 240056), (1332, 210860), (1443, 194640), (1480, 189774), (1560, 180042), (1622, 173160), (1665, 168688), (1776, 158145), (1872, 150035), (1924, 145980), (2220, 126516), (2340, 120028), (2405, 116784), (2433, 115440), (2664, 105430), (2886, 97320), (2960, 94887), (3120, 90021), (3244, 86580), (3330, 84344), (3848, 72990), (4055, 69264), (4329, 64880), (4440, 63258), (4680, 60014), (4810, 58392), (4866, 57720), (5328, 52715), (5772, 48660), (6488, 43290), (6660, 42172), (7215, 38928), (7299, 38480), (7696, 36495), (8110, 34632), (8658, 32440), (8880, 31629), (9360, 30007), (9620, 29196), (9732, 28860), (10543, 26640), (11544, 24330), (12165, 23088), (12976, 21645), (13320, 21086), (14430, 19464), (14598, 19240), (16220, 17316)]