178982908

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{101}}^1\times {\mathrm{643}}^1$

素因数の和:814

約数の個数: 48

約数和(自身を含む): 347620896

約数和(自身を除く): 168637988

約数列:

[1, 2, 4, 13, 26, 52, 53, 101, 106, 202, 212, 404, 643, 689, 1286, 1313, 1378, 2572, 2626, 2756, 5252, 5353, 8359, 10706, 16718, 21412, 33436, 34079, 64943, 68158, 69589, 129886, 136316, 139178, 259772, 278356, 443027, 844259, 886054, 1688518, 1772108, 3377036, 3441979, 6883958, 13767916, 44745727, 89491454, 178982908]

約数ペア:

[(1, 178982908), (2, 89491454), (4, 44745727), (13, 13767916), (26, 6883958), (52, 3441979), (53, 3377036), (101, 1772108), (106, 1688518), (202, 886054), (212, 844259), (404, 443027), (643, 278356), (689, 259772), (1286, 139178), (1313, 136316), (1378, 129886), (2572, 69589), (2626, 68158), (2756, 64943), (5252, 34079), (5353, 33436), (8359, 21412), (10706, 16718)]