281342360

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{563}}^1$

素因数の和:649

約数の個数: 96

約数和(自身を含む): 705665520

約数和(自身を除く): 424323160

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 104, 124, 130, 155, 248, 260, 310, 403, 520, 563, 620, 806, 961, 1126, 1240, 1612, 1922, 2015, 2252, 2815, 3224, 3844, 4030, 4504, 4805, 5630, 7319, 7688, 8060, 9610, 11260, 12493, 14638, 16120, 17453, 19220, 22520, 24986, 29276, 34906, 36595, 38440, 49972, 58552, 62465, 69812, 73190, 87265, 99944, 124930, 139624, 146380, 174530, 226889, 249860, 292760, 349060, 453778, 499720, 541043, 698120, 907556, 1082086, 1134445, 1815112, 2164172, 2268890, 2705215, 4328344, 4537780, 5410430, 7033559, 9075560, 10820860, 14067118, 21641720, 28134236, 35167795, 56268472, 70335590, 140671180, 281342360]

約数ペア:

[(1, 281342360), (2, 140671180), (4, 70335590), (5, 56268472), (8, 35167795), (10, 28134236), (13, 21641720), (20, 14067118), (26, 10820860), (31, 9075560), (40, 7033559), (52, 5410430), (62, 4537780), (65, 4328344), (104, 2705215), (124, 2268890), (130, 2164172), (155, 1815112), (248, 1134445), (260, 1082086), (310, 907556), (403, 698120), (520, 541043), (563, 499720), (620, 453778), (806, 349060), (961, 292760), (1126, 249860), (1240, 226889), (1612, 174530), (1922, 146380), (2015, 139624), (2252, 124930), (2815, 99944), (3224, 87265), (3844, 73190), (4030, 69812), (4504, 62465), (4805, 58552), (5630, 49972), (7319, 38440), (7688, 36595), (8060, 34906), (9610, 29276), (11260, 24986), (12493, 22520), (14638, 19220), (16120, 17453)]