261983680

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1$

素因数の和:199

約数の個数: 224

約数和(自身を含む): 764438400

約数和(自身を除く): 502454720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 29, 32, 35, 37, 40, 56, 58, 64, 70, 74, 80, 109, 112, 116, 140, 145, 148, 160, 185, 203, 218, 224, 232, 259, 280, 290, 296, 320, 370, 406, 436, 448, 464, 518, 545, 560, 580, 592, 740, 763, 812, 872, 928, 1015, 1036, 1073, 1090, 1120, 1160, 1184, 1295, 1480, 1526, 1624, 1744, 1856, 2030, 2072, 2146, 2180, 2240, 2320, 2368, 2590, 2960, 3052, 3161, 3248, 3488, 3815, 4033, 4060, 4144, 4292, 4360, 4640, 5180, 5365, 5920, 6104, 6322, 6496, 6976, 7511, 7630, 8066, 8120, 8288, 8584, 8720, 9280, 10360, 10730, 11840, 12208, 12644, 12992, 15022, 15260, 15805, 16132, 16240, 16576, 17168, 17440, 20165, 20720, 21460, 22127, 24416, 25288, 28231, 30044, 30520, 31610, 32264, 32480, 34336, 34880, 37555, 40330, 41440, 42920, 44254, 48832, 50576, 56462, 60088, 61040, 63220, 64528, 64960, 68672, 75110, 80660, 82880, 85840, 88508, 101152, 110635, 112924, 116957, 120176, 122080, 126440, 129056, 141155, 150220, 161320, 171680, 177016, 202304, 221270, 225848, 233914, 240352, 244160, 252880, 258112, 282310, 300440, 322640, 343360, 354032, 442540, 451696, 467828, 480704, 505760, 564620, 584785, 600880, 645280, 708064, 818699, 885080, 903392, 935656, 1011520, 1129240, 1169570, 1201760, 1290560, 1416128, 1637398, 1770160, 1806784, 1871312, 2258480, 2339140, 2403520, 3274796, 3540320, 3742624, 4093495, 4516960, 4678280, 6549592, 7080640, 7485248, 8186990, 9033920, 9356560, 13099184, 16373980, 18713120, 26198368, 32747960, 37426240, 52396736, 65495920, 130991840, 261983680]

約数ペア:

[(1, 261983680), (2, 130991840), (4, 65495920), (5, 52396736), (7, 37426240), (8, 32747960), (10, 26198368), (14, 18713120), (16, 16373980), (20, 13099184), (28, 9356560), (29, 9033920), (32, 8186990), (35, 7485248), (37, 7080640), (40, 6549592), (56, 4678280), (58, 4516960), (64, 4093495), (70, 3742624), (74, 3540320), (80, 3274796), (109, 2403520), (112, 2339140), (116, 2258480), (140, 1871312), (145, 1806784), (148, 1770160), (160, 1637398), (185, 1416128), (203, 1290560), (218, 1201760), (224, 1169570), (232, 1129240), (259, 1011520), (280, 935656), (290, 903392), (296, 885080), (320, 818699), (370, 708064), (406, 645280), (436, 600880), (448, 584785), (464, 564620), (518, 505760), (545, 480704), (560, 467828), (580, 451696), (592, 442540), (740, 354032), (763, 343360), (812, 322640), (872, 300440), (928, 282310), (1015, 258112), (1036, 252880), (1073, 244160), (1090, 240352), (1120, 233914), (1160, 225848), (1184, 221270), (1295, 202304), (1480, 177016), (1526, 171680), (1624, 161320), (1744, 150220), (1856, 141155), (2030, 129056), (2072, 126440), (2146, 122080), (2180, 120176), (2240, 116957), (2320, 112924), (2368, 110635), (2590, 101152), (2960, 88508), (3052, 85840), (3161, 82880), (3248, 80660), (3488, 75110), (3815, 68672), (4033, 64960), (4060, 64528), (4144, 63220), (4292, 61040), (4360, 60088), (4640, 56462), (5180, 50576), (5365, 48832), (5920, 44254), (6104, 42920), (6322, 41440), (6496, 40330), (6976, 37555), (7511, 34880), (7630, 34336), (8066, 32480), (8120, 32264), (8288, 31610), (8584, 30520), (8720, 30044), (9280, 28231), (10360, 25288), (10730, 24416), (11840, 22127), (12208, 21460), (12644, 20720), (12992, 20165), (15022, 17440), (15260, 17168), (15805, 16576), (16132, 16240)]