20178440116

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{5087}}^1$

素因数の和:5237

約数の個数: 72

約数和(自身を含む): 38755051776

約数和(自身を除く): 18576611660

約数列:

[1, 2, 4, 19, 38, 41, 67, 76, 82, 134, 164, 268, 361, 722, 779, 1273, 1444, 1558, 2546, 2747, 3116, 5087, 5092, 5494, 10174, 10988, 14801, 20348, 24187, 29602, 48374, 52193, 59204, 96653, 96748, 104386, 193306, 208567, 208772, 340829, 386612, 417134, 681658, 834268, 991667, 1363316, 1836407, 1983334, 3672814, 3962773, 3966668, 6475751, 7345628, 7925546, 12951502, 13973989, 15851092, 25903004, 27947978, 55895956, 75292687, 123039269, 150585374, 246078538, 265505791, 301170748, 492157076, 531011582, 1062023164, 5044610029, 10089220058, 20178440116]

約数ペア:

[(1, 20178440116), (2, 10089220058), (4, 5044610029), (19, 1062023164), (38, 531011582), (41, 492157076), (67, 301170748), (76, 265505791), (82, 246078538), (134, 150585374), (164, 123039269), (268, 75292687), (361, 55895956), (722, 27947978), (779, 25903004), (1273, 15851092), (1444, 13973989), (1558, 12951502), (2546, 7925546), (2747, 7345628), (3116, 6475751), (5087, 3966668), (5092, 3962773), (5494, 3672814), (10174, 1983334), (10988, 1836407), (14801, 1363316), (20348, 991667), (24187, 834268), (29602, 681658), (48374, 417134), (52193, 386612), (59204, 340829), (96653, 208772), (96748, 208567), (104386, 193306)]