1999897680

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{4051}}^1$

素因数の和:4106

約数の個数: 240

約数和(自身を含む): 7217163072

約数和(自身を除く): 5217265392

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 17, 20, 22, 24, 30, 33, 34, 40, 44, 48, 51, 55, 60, 66, 68, 80, 85, 88, 102, 110, 120, 121, 132, 136, 165, 170, 176, 187, 204, 220, 240, 242, 255, 264, 272, 330, 340, 363, 374, 408, 440, 484, 510, 528, 561, 605, 660, 680, 726, 748, 816, 880, 935, 968, 1020, 1122, 1210, 1320, 1360, 1452, 1496, 1815, 1870, 1936, 2040, 2057, 2244, 2420, 2640, 2805, 2904, 2992, 3630, 3740, 4051, 4080, 4114, 4488, 4840, 5610, 5808, 6171, 7260, 7480, 8102, 8228, 8976, 9680, 10285, 11220, 12153, 12342, 14520, 14960, 16204, 16456, 20255, 20570, 22440, 24306, 24684, 29040, 30855, 32408, 32912, 40510, 41140, 44561, 44880, 48612, 49368, 60765, 61710, 64816, 68867, 81020, 82280, 89122, 97224, 98736, 121530, 123420, 133683, 137734, 162040, 164560, 178244, 194448, 206601, 222805, 243060, 246840, 267366, 275468, 324080, 344335, 356488, 413202, 445610, 486120, 490171, 493680, 534732, 550936, 668415, 688670, 712976, 757537, 826404, 891220, 972240, 980342, 1033005, 1069464, 1101872, 1336830, 1377340, 1470513, 1515074, 1652808, 1782440, 1960684, 2066010, 2138928, 2272611, 2450855, 2673660, 2754680, 2941026, 3030148, 3305616, 3564880, 3787685, 3921368, 4132020, 4545222, 4901710, 5347320, 5509360, 5882052, 6060296, 7352565, 7575370, 7842736, 8264040, 8332907, 9090444, 9803420, 10694640, 11363055, 11764104, 12120592, 14705130, 15150740, 16528080, 16665814, 18180888, 19606840, 22726110, 23528208, 24998721, 29410260, 30301480, 33331628, 36361776, 39213680, 41664535, 45452220, 49997442, 58820520, 60602960, 66663256, 83329070, 90904440, 99994884, 117641040, 124993605, 133326512, 166658140, 181808880, 199989768, 249987210, 333316280, 399979536, 499974420, 666632560, 999948840, 1999897680]

約数ペア:

[(1, 1999897680), (2, 999948840), (3, 666632560), (4, 499974420), (5, 399979536), (6, 333316280), (8, 249987210), (10, 199989768), (11, 181808880), (12, 166658140), (15, 133326512), (16, 124993605), (17, 117641040), (20, 99994884), (22, 90904440), (24, 83329070), (30, 66663256), (33, 60602960), (34, 58820520), (40, 49997442), (44, 45452220), (48, 41664535), (51, 39213680), (55, 36361776), (60, 33331628), (66, 30301480), (68, 29410260), (80, 24998721), (85, 23528208), (88, 22726110), (102, 19606840), (110, 18180888), (120, 16665814), (121, 16528080), (132, 15150740), (136, 14705130), (165, 12120592), (170, 11764104), (176, 11363055), (187, 10694640), (204, 9803420), (220, 9090444), (240, 8332907), (242, 8264040), (255, 7842736), (264, 7575370), (272, 7352565), (330, 6060296), (340, 5882052), (363, 5509360), (374, 5347320), (408, 4901710), (440, 4545222), (484, 4132020), (510, 3921368), (528, 3787685), (561, 3564880), (605, 3305616), (660, 3030148), (680, 2941026), (726, 2754680), (748, 2673660), (816, 2450855), (880, 2272611), (935, 2138928), (968, 2066010), (1020, 1960684), (1122, 1782440), (1210, 1652808), (1320, 1515074), (1360, 1470513), (1452, 1377340), (1496, 1336830), (1815, 1101872), (1870, 1069464), (1936, 1033005), (2040, 980342), (2057, 972240), (2244, 891220), (2420, 826404), (2640, 757537), (2805, 712976), (2904, 688670), (2992, 668415), (3630, 550936), (3740, 534732), (4051, 493680), (4080, 490171), (4114, 486120), (4488, 445610), (4840, 413202), (5610, 356488), (5808, 344335), (6171, 324080), (7260, 275468), (7480, 267366), (8102, 246840), (8228, 243060), (8976, 222805), (9680, 206601), (10285, 194448), (11220, 178244), (12153, 164560), (12342, 162040), (14520, 137734), (14960, 133683), (16204, 123420), (16456, 121530), (20255, 98736), (20570, 97224), (22440, 89122), (24306, 82280), (24684, 81020), (29040, 68867), (30855, 64816), (32408, 61710), (32912, 60765), (40510, 49368), (41140, 48612), (44561, 44880)]