31281120

素因数分解:

$2^5\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{557}}^1$

素因数の和:594

約数の個数: 192

約数和(自身を含む): 118117440

約数和(自身を除く): 86836320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 27, 30, 32, 36, 39, 40, 45, 48, 52, 54, 60, 65, 72, 78, 80, 90, 96, 104, 108, 117, 120, 130, 135, 144, 156, 160, 180, 195, 208, 216, 234, 240, 260, 270, 288, 312, 351, 360, 390, 416, 432, 468, 480, 520, 540, 557, 585, 624, 702, 720, 780, 864, 936, 1040, 1080, 1114, 1170, 1248, 1404, 1440, 1560, 1671, 1755, 1872, 2080, 2160, 2228, 2340, 2785, 2808, 3120, 3342, 3510, 3744, 4320, 4456, 4680, 5013, 5570, 5616, 6240, 6684, 7020, 7241, 8355, 8912, 9360, 10026, 11140, 11232, 13368, 14040, 14482, 15039, 16710, 17824, 18720, 20052, 21723, 22280, 25065, 26736, 28080, 28964, 30078, 33420, 36205, 40104, 43446, 44560, 50130, 53472, 56160, 57928, 60156, 65169, 66840, 72410, 75195, 80208, 86892, 89120, 100260, 108615, 115856, 120312, 130338, 133680, 144820, 150390, 160416, 173784, 195507, 200520, 217230, 231712, 240624, 260676, 267360, 289640, 300780, 325845, 347568, 391014, 401040, 434460, 481248, 521352, 579280, 601560, 651690, 695136, 782028, 802080, 868920, 977535, 1042704, 1158560, 1203120, 1303380, 1564056, 1737840, 1955070, 2085408, 2406240, 2606760, 3128112, 3475680, 3910140, 5213520, 6256224, 7820280, 10427040, 15640560, 31281120]

約数ペア:

[(1, 31281120), (2, 15640560), (3, 10427040), (4, 7820280), (5, 6256224), (6, 5213520), (8, 3910140), (9, 3475680), (10, 3128112), (12, 2606760), (13, 2406240), (15, 2085408), (16, 1955070), (18, 1737840), (20, 1564056), (24, 1303380), (26, 1203120), (27, 1158560), (30, 1042704), (32, 977535), (36, 868920), (39, 802080), (40, 782028), (45, 695136), (48, 651690), (52, 601560), (54, 579280), (60, 521352), (65, 481248), (72, 434460), (78, 401040), (80, 391014), (90, 347568), (96, 325845), (104, 300780), (108, 289640), (117, 267360), (120, 260676), (130, 240624), (135, 231712), (144, 217230), (156, 200520), (160, 195507), (180, 173784), (195, 160416), (208, 150390), (216, 144820), (234, 133680), (240, 130338), (260, 120312), (270, 115856), (288, 108615), (312, 100260), (351, 89120), (360, 86892), (390, 80208), (416, 75195), (432, 72410), (468, 66840), (480, 65169), (520, 60156), (540, 57928), (557, 56160), (585, 53472), (624, 50130), (702, 44560), (720, 43446), (780, 40104), (864, 36205), (936, 33420), (1040, 30078), (1080, 28964), (1114, 28080), (1170, 26736), (1248, 25065), (1404, 22280), (1440, 21723), (1560, 20052), (1671, 18720), (1755, 17824), (1872, 16710), (2080, 15039), (2160, 14482), (2228, 14040), (2340, 13368), (2785, 11232), (2808, 11140), (3120, 10026), (3342, 9360), (3510, 8912), (3744, 8355), (4320, 7241), (4456, 7020), (4680, 6684), (5013, 6240), (5570, 5616)]