20823810

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{307}}^1$

素因数の和:360

約数の個数: 128

約数和(自身を含む): 63866880

約数和(自身を除く): 43043070

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 17, 19, 21, 30, 34, 35, 38, 42, 51, 57, 70, 85, 95, 102, 105, 114, 119, 133, 170, 190, 210, 238, 255, 266, 285, 307, 323, 357, 399, 510, 570, 595, 614, 646, 665, 714, 798, 921, 969, 1190, 1330, 1535, 1615, 1785, 1842, 1938, 1995, 2149, 2261, 3070, 3230, 3570, 3990, 4298, 4522, 4605, 4845, 5219, 5833, 6447, 6783, 9210, 9690, 10438, 10745, 11305, 11666, 12894, 13566, 15657, 17499, 21490, 22610, 26095, 29165, 31314, 32235, 33915, 34998, 36533, 40831, 52190, 58330, 64470, 67830, 73066, 78285, 81662, 87495, 99161, 109599, 122493, 156570, 174990, 182665, 198322, 204155, 219198, 244986, 297483, 365330, 408310, 495805, 547995, 594966, 612465, 694127, 991610, 1095990, 1224930, 1388254, 1487415, 2082381, 2974830, 3470635, 4164762, 6941270, 10411905, 20823810]

約数ペア:

[(1, 20823810), (2, 10411905), (3, 6941270), (5, 4164762), (6, 3470635), (7, 2974830), (10, 2082381), (14, 1487415), (15, 1388254), (17, 1224930), (19, 1095990), (21, 991610), (30, 694127), (34, 612465), (35, 594966), (38, 547995), (42, 495805), (51, 408310), (57, 365330), (70, 297483), (85, 244986), (95, 219198), (102, 204155), (105, 198322), (114, 182665), (119, 174990), (133, 156570), (170, 122493), (190, 109599), (210, 99161), (238, 87495), (255, 81662), (266, 78285), (285, 73066), (307, 67830), (323, 64470), (357, 58330), (399, 52190), (510, 40831), (570, 36533), (595, 34998), (614, 33915), (646, 32235), (665, 31314), (714, 29165), (798, 26095), (921, 22610), (969, 21490), (1190, 17499), (1330, 15657), (1535, 13566), (1615, 12894), (1785, 11666), (1842, 11305), (1938, 10745), (1995, 10438), (2149, 9690), (2261, 9210), (3070, 6783), (3230, 6447), (3570, 5833), (3990, 5219), (4298, 4845), (4522, 4605)]