18872880

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{263}}^1$

素因数の和:315

約数の個数: 160

約数和(自身を含む): 65995776

約数和(自身を除く): 47122896

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 23, 24, 26, 30, 39, 40, 46, 48, 52, 60, 65, 69, 78, 80, 92, 104, 115, 120, 130, 138, 156, 184, 195, 208, 230, 240, 260, 263, 276, 299, 312, 345, 368, 390, 460, 520, 526, 552, 598, 624, 690, 780, 789, 897, 920, 1040, 1052, 1104, 1196, 1315, 1380, 1495, 1560, 1578, 1794, 1840, 2104, 2392, 2630, 2760, 2990, 3120, 3156, 3419, 3588, 3945, 4208, 4485, 4784, 5260, 5520, 5980, 6049, 6312, 6838, 7176, 7890, 8970, 10257, 10520, 11960, 12098, 12624, 13676, 14352, 15780, 17095, 17940, 18147, 20514, 21040, 23920, 24196, 27352, 30245, 31560, 34190, 35880, 36294, 41028, 48392, 51285, 54704, 60490, 63120, 68380, 71760, 72588, 78637, 82056, 90735, 96784, 102570, 120980, 136760, 145176, 157274, 164112, 181470, 205140, 235911, 241960, 273520, 290352, 314548, 362940, 393185, 410280, 471822, 483920, 629096, 725880, 786370, 820560, 943644, 1179555, 1258192, 1451760, 1572740, 1887288, 2359110, 3145480, 3774576, 4718220, 6290960, 9436440, 18872880]

約数ペア:

[(1, 18872880), (2, 9436440), (3, 6290960), (4, 4718220), (5, 3774576), (6, 3145480), (8, 2359110), (10, 1887288), (12, 1572740), (13, 1451760), (15, 1258192), (16, 1179555), (20, 943644), (23, 820560), (24, 786370), (26, 725880), (30, 629096), (39, 483920), (40, 471822), (46, 410280), (48, 393185), (52, 362940), (60, 314548), (65, 290352), (69, 273520), (78, 241960), (80, 235911), (92, 205140), (104, 181470), (115, 164112), (120, 157274), (130, 145176), (138, 136760), (156, 120980), (184, 102570), (195, 96784), (208, 90735), (230, 82056), (240, 78637), (260, 72588), (263, 71760), (276, 68380), (299, 63120), (312, 60490), (345, 54704), (368, 51285), (390, 48392), (460, 41028), (520, 36294), (526, 35880), (552, 34190), (598, 31560), (624, 30245), (690, 27352), (780, 24196), (789, 23920), (897, 21040), (920, 20514), (1040, 18147), (1052, 17940), (1104, 17095), (1196, 15780), (1315, 14352), (1380, 13676), (1495, 12624), (1560, 12098), (1578, 11960), (1794, 10520), (1840, 10257), (2104, 8970), (2392, 7890), (2630, 7176), (2760, 6838), (2990, 6312), (3120, 6049), (3156, 5980), (3419, 5520), (3588, 5260), (3945, 4784), (4208, 4485)]