20837520

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{877}}^1$

素因数の和:910

約数の個数: 160

約数和(自身を含む): 78387840

約数和(自身を除く): 57550320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 27, 30, 33, 36, 40, 44, 45, 48, 54, 55, 60, 66, 72, 80, 88, 90, 99, 108, 110, 120, 132, 135, 144, 165, 176, 180, 198, 216, 220, 240, 264, 270, 297, 330, 360, 396, 432, 440, 495, 528, 540, 594, 660, 720, 792, 877, 880, 990, 1080, 1188, 1320, 1485, 1584, 1754, 1980, 2160, 2376, 2631, 2640, 2970, 3508, 3960, 4385, 4752, 5262, 5940, 7016, 7893, 7920, 8770, 9647, 10524, 11880, 13155, 14032, 15786, 17540, 19294, 21048, 23679, 23760, 26310, 28941, 31572, 35080, 38588, 39465, 42096, 47358, 48235, 52620, 57882, 63144, 70160, 77176, 78930, 86823, 94716, 96470, 105240, 115764, 118395, 126288, 144705, 154352, 157860, 173646, 189432, 192940, 210480, 231528, 236790, 260469, 289410, 315720, 347292, 378864, 385880, 434115, 463056, 473580, 520938, 578820, 631440, 694584, 771760, 868230, 947160, 1041876, 1157640, 1302345, 1389168, 1736460, 1894320, 2083752, 2315280, 2604690, 3472920, 4167504, 5209380, 6945840, 10418760, 20837520]

約数ペア:

[(1, 20837520), (2, 10418760), (3, 6945840), (4, 5209380), (5, 4167504), (6, 3472920), (8, 2604690), (9, 2315280), (10, 2083752), (11, 1894320), (12, 1736460), (15, 1389168), (16, 1302345), (18, 1157640), (20, 1041876), (22, 947160), (24, 868230), (27, 771760), (30, 694584), (33, 631440), (36, 578820), (40, 520938), (44, 473580), (45, 463056), (48, 434115), (54, 385880), (55, 378864), (60, 347292), (66, 315720), (72, 289410), (80, 260469), (88, 236790), (90, 231528), (99, 210480), (108, 192940), (110, 189432), (120, 173646), (132, 157860), (135, 154352), (144, 144705), (165, 126288), (176, 118395), (180, 115764), (198, 105240), (216, 96470), (220, 94716), (240, 86823), (264, 78930), (270, 77176), (297, 70160), (330, 63144), (360, 57882), (396, 52620), (432, 48235), (440, 47358), (495, 42096), (528, 39465), (540, 38588), (594, 35080), (660, 31572), (720, 28941), (792, 26310), (877, 23760), (880, 23679), (990, 21048), (1080, 19294), (1188, 17540), (1320, 15786), (1485, 14032), (1584, 13155), (1754, 11880), (1980, 10524), (2160, 9647), (2376, 8770), (2631, 7920), (2640, 7893), (2970, 7016), (3508, 5940), (3960, 5262), (4385, 4752)]