19718820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{433}}^1$

素因数の和:482

約数の個数: 144

約数和(自身を含む): 68245632

約数和(自身を除く): 48526812

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 23, 30, 33, 36, 44, 45, 46, 55, 60, 66, 69, 90, 92, 99, 110, 115, 132, 138, 165, 180, 198, 207, 220, 230, 253, 276, 330, 345, 396, 414, 433, 460, 495, 506, 660, 690, 759, 828, 866, 990, 1012, 1035, 1265, 1299, 1380, 1518, 1732, 1980, 2070, 2165, 2277, 2530, 2598, 3036, 3795, 3897, 4140, 4330, 4554, 4763, 5060, 5196, 6495, 7590, 7794, 8660, 9108, 9526, 9959, 11385, 12990, 14289, 15180, 15588, 19052, 19485, 19918, 22770, 23815, 25980, 28578, 29877, 38970, 39836, 42867, 45540, 47630, 49795, 57156, 59754, 71445, 77940, 85734, 89631, 95260, 99590, 109549, 119508, 142890, 149385, 171468, 179262, 199180, 214335, 219098, 285780, 298770, 328647, 358524, 428670, 438196, 448155, 547745, 597540, 657294, 857340, 896310, 985941, 1095490, 1314588, 1643235, 1792620, 1971882, 2190980, 3286470, 3943764, 4929705, 6572940, 9859410, 19718820]

約数ペア:

[(1, 19718820), (2, 9859410), (3, 6572940), (4, 4929705), (5, 3943764), (6, 3286470), (9, 2190980), (10, 1971882), (11, 1792620), (12, 1643235), (15, 1314588), (18, 1095490), (20, 985941), (22, 896310), (23, 857340), (30, 657294), (33, 597540), (36, 547745), (44, 448155), (45, 438196), (46, 428670), (55, 358524), (60, 328647), (66, 298770), (69, 285780), (90, 219098), (92, 214335), (99, 199180), (110, 179262), (115, 171468), (132, 149385), (138, 142890), (165, 119508), (180, 109549), (198, 99590), (207, 95260), (220, 89631), (230, 85734), (253, 77940), (276, 71445), (330, 59754), (345, 57156), (396, 49795), (414, 47630), (433, 45540), (460, 42867), (495, 39836), (506, 38970), (660, 29877), (690, 28578), (759, 25980), (828, 23815), (866, 22770), (990, 19918), (1012, 19485), (1035, 19052), (1265, 15588), (1299, 15180), (1380, 14289), (1518, 12990), (1732, 11385), (1980, 9959), (2070, 9526), (2165, 9108), (2277, 8660), (2530, 7794), (2598, 7590), (3036, 6495), (3795, 5196), (3897, 5060), (4140, 4763), (4330, 4554)]