205990020

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1181}}^1$

素因数の和:1235

約数の個数: 192

約数和(自身を含む): 714873600

約数和(自身を除く): 508883580

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 19, 20, 27, 30, 34, 36, 38, 45, 51, 54, 57, 60, 68, 76, 85, 90, 95, 102, 108, 114, 135, 153, 170, 171, 180, 190, 204, 228, 255, 270, 285, 306, 323, 340, 342, 380, 459, 510, 513, 540, 570, 612, 646, 684, 765, 855, 918, 969, 1020, 1026, 1140, 1181, 1292, 1530, 1615, 1710, 1836, 1938, 2052, 2295, 2362, 2565, 2907, 3060, 3230, 3420, 3543, 3876, 4590, 4724, 4845, 5130, 5814, 5905, 6460, 7086, 8721, 9180, 9690, 10260, 10629, 11628, 11810, 14172, 14535, 17442, 17715, 19380, 20077, 21258, 22439, 23620, 29070, 31887, 34884, 35430, 40154, 42516, 43605, 44878, 53145, 58140, 60231, 63774, 67317, 70860, 80308, 87210, 89756, 100385, 106290, 112195, 120462, 127548, 134634, 159435, 174420, 180693, 200770, 201951, 212580, 224390, 240924, 269268, 301155, 318870, 336585, 361386, 381463, 401540, 403902, 448780, 542079, 602310, 605853, 637740, 673170, 722772, 762926, 807804, 903465, 1009755, 1084158, 1144389, 1204620, 1211706, 1346340, 1525852, 1806930, 1907315, 2019510, 2168316, 2288778, 2423412, 2710395, 3029265, 3433167, 3613860, 3814630, 4039020, 4577556, 5420790, 5721945, 6058530, 6866334, 7629260, 10299501, 10841580, 11443890, 12117060, 13732668, 17165835, 20599002, 22887780, 34331670, 41198004, 51497505, 68663340, 102995010, 205990020]

約数ペア:

[(1, 205990020), (2, 102995010), (3, 68663340), (4, 51497505), (5, 41198004), (6, 34331670), (9, 22887780), (10, 20599002), (12, 17165835), (15, 13732668), (17, 12117060), (18, 11443890), (19, 10841580), (20, 10299501), (27, 7629260), (30, 6866334), (34, 6058530), (36, 5721945), (38, 5420790), (45, 4577556), (51, 4039020), (54, 3814630), (57, 3613860), (60, 3433167), (68, 3029265), (76, 2710395), (85, 2423412), (90, 2288778), (95, 2168316), (102, 2019510), (108, 1907315), (114, 1806930), (135, 1525852), (153, 1346340), (170, 1211706), (171, 1204620), (180, 1144389), (190, 1084158), (204, 1009755), (228, 903465), (255, 807804), (270, 762926), (285, 722772), (306, 673170), (323, 637740), (340, 605853), (342, 602310), (380, 542079), (459, 448780), (510, 403902), (513, 401540), (540, 381463), (570, 361386), (612, 336585), (646, 318870), (684, 301155), (765, 269268), (855, 240924), (918, 224390), (969, 212580), (1020, 201951), (1026, 200770), (1140, 180693), (1181, 174420), (1292, 159435), (1530, 134634), (1615, 127548), (1710, 120462), (1836, 112195), (1938, 106290), (2052, 100385), (2295, 89756), (2362, 87210), (2565, 80308), (2907, 70860), (3060, 67317), (3230, 63774), (3420, 60231), (3543, 58140), (3876, 53145), (4590, 44878), (4724, 43605), (4845, 42516), (5130, 40154), (5814, 35430), (5905, 34884), (6460, 31887), (7086, 29070), (8721, 23620), (9180, 22439), (9690, 21258), (10260, 20077), (10629, 19380), (11628, 17715), (11810, 17442), (14172, 14535)]