51430860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{709}}^1$

素因数の和:768

約数の個数: 144

約数和(自身を含む): 173671680

約数和(自身を除く): 122240820

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 31, 36, 39, 45, 52, 60, 62, 65, 78, 90, 93, 117, 124, 130, 155, 156, 180, 186, 195, 234, 260, 279, 310, 372, 390, 403, 465, 468, 558, 585, 620, 709, 780, 806, 930, 1116, 1170, 1209, 1395, 1418, 1612, 1860, 2015, 2127, 2340, 2418, 2790, 2836, 3545, 3627, 4030, 4254, 4836, 5580, 6045, 6381, 7090, 7254, 8060, 8508, 9217, 10635, 12090, 12762, 14180, 14508, 18135, 18434, 21270, 21979, 24180, 25524, 27651, 31905, 36270, 36868, 42540, 43958, 46085, 55302, 63810, 65937, 72540, 82953, 87916, 92170, 109895, 110604, 127620, 131874, 138255, 165906, 184340, 197811, 219790, 263748, 276510, 285727, 329685, 331812, 395622, 414765, 439580, 553020, 571454, 659370, 791244, 829530, 857181, 989055, 1142908, 1318740, 1428635, 1659060, 1714362, 1978110, 2571543, 2857270, 3428724, 3956220, 4285905, 5143086, 5714540, 8571810, 10286172, 12857715, 17143620, 25715430, 51430860]

約数ペア:

[(1, 51430860), (2, 25715430), (3, 17143620), (4, 12857715), (5, 10286172), (6, 8571810), (9, 5714540), (10, 5143086), (12, 4285905), (13, 3956220), (15, 3428724), (18, 2857270), (20, 2571543), (26, 1978110), (30, 1714362), (31, 1659060), (36, 1428635), (39, 1318740), (45, 1142908), (52, 989055), (60, 857181), (62, 829530), (65, 791244), (78, 659370), (90, 571454), (93, 553020), (117, 439580), (124, 414765), (130, 395622), (155, 331812), (156, 329685), (180, 285727), (186, 276510), (195, 263748), (234, 219790), (260, 197811), (279, 184340), (310, 165906), (372, 138255), (390, 131874), (403, 127620), (465, 110604), (468, 109895), (558, 92170), (585, 87916), (620, 82953), (709, 72540), (780, 65937), (806, 63810), (930, 55302), (1116, 46085), (1170, 43958), (1209, 42540), (1395, 36868), (1418, 36270), (1612, 31905), (1860, 27651), (2015, 25524), (2127, 24180), (2340, 21979), (2418, 21270), (2790, 18434), (2836, 18135), (3545, 14508), (3627, 14180), (4030, 12762), (4254, 12090), (4836, 10635), (5580, 9217), (6045, 8508), (6381, 8060), (7090, 7254)]