128847780

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{179}}^1$

素因数の和:271

約数の個数: 192

約数和(自身を含む): 425779200

約数和(自身を除く): 296931420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 31, 36, 43, 45, 54, 60, 62, 86, 90, 93, 108, 124, 129, 135, 155, 172, 179, 180, 186, 215, 258, 270, 279, 310, 358, 372, 387, 430, 465, 516, 537, 540, 558, 620, 645, 716, 774, 837, 860, 895, 930, 1074, 1116, 1161, 1290, 1333, 1395, 1548, 1611, 1674, 1790, 1860, 1935, 2148, 2322, 2580, 2666, 2685, 2790, 3222, 3348, 3580, 3870, 3999, 4185, 4644, 4833, 5332, 5370, 5549, 5580, 5805, 6444, 6665, 7697, 7740, 7998, 8055, 8370, 9666, 10740, 11098, 11610, 11997, 13330, 15394, 15996, 16110, 16647, 16740, 19332, 19995, 22196, 23091, 23220, 23994, 24165, 26660, 27745, 30788, 32220, 33294, 35991, 38485, 39990, 46182, 47988, 48330, 49941, 55490, 59985, 66588, 69273, 71982, 76970, 79980, 83235, 92364, 96660, 99882, 110980, 115455, 119970, 138546, 143964, 149823, 153940, 166470, 179955, 199764, 207819, 230910, 238607, 239940, 249705, 277092, 299646, 332940, 346365, 359910, 415638, 461820, 477214, 499410, 599292, 692730, 715821, 719820, 749115, 831276, 954428, 998820, 1039095, 1193035, 1385460, 1431642, 1498230, 2078190, 2147463, 2386070, 2863284, 2996460, 3579105, 4156380, 4294926, 4772140, 6442389, 7158210, 8589852, 10737315, 12884778, 14316420, 21474630, 25769556, 32211945, 42949260, 64423890, 128847780]

約数ペア:

[(1, 128847780), (2, 64423890), (3, 42949260), (4, 32211945), (5, 25769556), (6, 21474630), (9, 14316420), (10, 12884778), (12, 10737315), (15, 8589852), (18, 7158210), (20, 6442389), (27, 4772140), (30, 4294926), (31, 4156380), (36, 3579105), (43, 2996460), (45, 2863284), (54, 2386070), (60, 2147463), (62, 2078190), (86, 1498230), (90, 1431642), (93, 1385460), (108, 1193035), (124, 1039095), (129, 998820), (135, 954428), (155, 831276), (172, 749115), (179, 719820), (180, 715821), (186, 692730), (215, 599292), (258, 499410), (270, 477214), (279, 461820), (310, 415638), (358, 359910), (372, 346365), (387, 332940), (430, 299646), (465, 277092), (516, 249705), (537, 239940), (540, 238607), (558, 230910), (620, 207819), (645, 199764), (716, 179955), (774, 166470), (837, 153940), (860, 149823), (895, 143964), (930, 138546), (1074, 119970), (1116, 115455), (1161, 110980), (1290, 99882), (1333, 96660), (1395, 92364), (1548, 83235), (1611, 79980), (1674, 76970), (1790, 71982), (1860, 69273), (1935, 66588), (2148, 59985), (2322, 55490), (2580, 49941), (2666, 48330), (2685, 47988), (2790, 46182), (3222, 39990), (3348, 38485), (3580, 35991), (3870, 33294), (3999, 32220), (4185, 30788), (4644, 27745), (4833, 26660), (5332, 24165), (5370, 23994), (5549, 23220), (5580, 23091), (5805, 22196), (6444, 19995), (6665, 19332), (7697, 16740), (7740, 16647), (7998, 16110), (8055, 15996), (8370, 15394), (9666, 13330), (10740, 11997), (11098, 11610)]