28784700

素因数分解:

$2^2\times 3^3\times 5^2\times 7^1\times {\mathrm{1523}}^1$

素因数の和:1553

約数の個数: 144

約数和(自身を含む): 105826560

約数和(自身を除く): 77041860

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 25, 27, 28, 30, 35, 36, 42, 45, 50, 54, 60, 63, 70, 75, 84, 90, 100, 105, 108, 126, 135, 140, 150, 175, 180, 189, 210, 225, 252, 270, 300, 315, 350, 378, 420, 450, 525, 540, 630, 675, 700, 756, 900, 945, 1050, 1260, 1350, 1523, 1575, 1890, 2100, 2700, 3046, 3150, 3780, 4569, 4725, 6092, 6300, 7615, 9138, 9450, 10661, 13707, 15230, 18276, 18900, 21322, 22845, 27414, 30460, 31983, 38075, 41121, 42644, 45690, 53305, 54828, 63966, 68535, 76150, 82242, 91380, 95949, 106610, 114225, 127932, 137070, 152300, 159915, 164484, 191898, 205605, 213220, 228450, 266525, 274140, 287847, 319830, 342675, 383796, 411210, 456900, 479745, 533050, 575694, 639660, 685350, 799575, 822420, 959490, 1028025, 1066100, 1151388, 1370700, 1439235, 1599150, 1918980, 2056050, 2398725, 2878470, 3198300, 4112100, 4797450, 5756940, 7196175, 9594900, 14392350, 28784700]

約数ペア:

[(1, 28784700), (2, 14392350), (3, 9594900), (4, 7196175), (5, 5756940), (6, 4797450), (7, 4112100), (9, 3198300), (10, 2878470), (12, 2398725), (14, 2056050), (15, 1918980), (18, 1599150), (20, 1439235), (21, 1370700), (25, 1151388), (27, 1066100), (28, 1028025), (30, 959490), (35, 822420), (36, 799575), (42, 685350), (45, 639660), (50, 575694), (54, 533050), (60, 479745), (63, 456900), (70, 411210), (75, 383796), (84, 342675), (90, 319830), (100, 287847), (105, 274140), (108, 266525), (126, 228450), (135, 213220), (140, 205605), (150, 191898), (175, 164484), (180, 159915), (189, 152300), (210, 137070), (225, 127932), (252, 114225), (270, 106610), (300, 95949), (315, 91380), (350, 82242), (378, 76150), (420, 68535), (450, 63966), (525, 54828), (540, 53305), (630, 45690), (675, 42644), (700, 41121), (756, 38075), (900, 31983), (945, 30460), (1050, 27414), (1260, 22845), (1350, 21322), (1523, 18900), (1575, 18276), (1890, 15230), (2100, 13707), (2700, 10661), (3046, 9450), (3150, 9138), (3780, 7615), (4569, 6300), (4725, 6092)]