20512590

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{97}}^1$

素因数の和:186

約数の個数: 128

約数和(自身を含む): 60963840

約数和(自身を除く): 40451250

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 19, 21, 30, 35, 38, 42, 53, 57, 70, 95, 97, 105, 106, 114, 133, 159, 190, 194, 210, 265, 266, 285, 291, 318, 371, 399, 485, 530, 570, 582, 665, 679, 742, 795, 798, 970, 1007, 1113, 1330, 1358, 1455, 1590, 1843, 1855, 1995, 2014, 2037, 2226, 2910, 3021, 3395, 3686, 3710, 3990, 4074, 5035, 5141, 5529, 5565, 6042, 6790, 7049, 9215, 10070, 10185, 10282, 11058, 11130, 12901, 14098, 15105, 15423, 18430, 20370, 21147, 25705, 25802, 27645, 30210, 30846, 35245, 35987, 38703, 42294, 51410, 55290, 64505, 70490, 71974, 77115, 77406, 97679, 105735, 107961, 129010, 154230, 179935, 193515, 195358, 211470, 215922, 293037, 359870, 387030, 488395, 539805, 586074, 683753, 976790, 1079610, 1367506, 1465185, 2051259, 2930370, 3418765, 4102518, 6837530, 10256295, 20512590]

約数ペア:

[(1, 20512590), (2, 10256295), (3, 6837530), (5, 4102518), (6, 3418765), (7, 2930370), (10, 2051259), (14, 1465185), (15, 1367506), (19, 1079610), (21, 976790), (30, 683753), (35, 586074), (38, 539805), (42, 488395), (53, 387030), (57, 359870), (70, 293037), (95, 215922), (97, 211470), (105, 195358), (106, 193515), (114, 179935), (133, 154230), (159, 129010), (190, 107961), (194, 105735), (210, 97679), (265, 77406), (266, 77115), (285, 71974), (291, 70490), (318, 64505), (371, 55290), (399, 51410), (485, 42294), (530, 38703), (570, 35987), (582, 35245), (665, 30846), (679, 30210), (742, 27645), (795, 25802), (798, 25705), (970, 21147), (1007, 20370), (1113, 18430), (1330, 15423), (1358, 15105), (1455, 14098), (1590, 12901), (1843, 11130), (1855, 11058), (1995, 10282), (2014, 10185), (2037, 10070), (2226, 9215), (2910, 7049), (3021, 6790), (3395, 6042), (3686, 5565), (3710, 5529), (3990, 5141), (4074, 5035)]