28915952

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1$

素因数の和:178

約数の個数: 80

約数和(自身を含む): 63933408

約数和(自身を除く): 35017456

約数列:

[1, 2, 4, 8, 13, 16, 26, 43, 52, 53, 61, 86, 104, 106, 122, 172, 208, 212, 244, 344, 424, 488, 559, 688, 689, 793, 848, 976, 1118, 1378, 1586, 2236, 2279, 2623, 2756, 3172, 3233, 4472, 4558, 5246, 5512, 6344, 6466, 8944, 9116, 10492, 11024, 12688, 12932, 18232, 20984, 25864, 29627, 34099, 36464, 41968, 42029, 51728, 59254, 68198, 84058, 118508, 136396, 139019, 168116, 237016, 272792, 278038, 336232, 474032, 545584, 556076, 672464, 1112152, 1807247, 2224304, 3614494, 7228988, 14457976, 28915952]

約数ペア:

[(1, 28915952), (2, 14457976), (4, 7228988), (8, 3614494), (13, 2224304), (16, 1807247), (26, 1112152), (43, 672464), (52, 556076), (53, 545584), (61, 474032), (86, 336232), (104, 278038), (106, 272792), (122, 237016), (172, 168116), (208, 139019), (212, 136396), (244, 118508), (344, 84058), (424, 68198), (488, 59254), (559, 51728), (688, 42029), (689, 41968), (793, 36464), (848, 34099), (976, 29627), (1118, 25864), (1378, 20984), (1586, 18232), (2236, 12932), (2279, 12688), (2623, 11024), (2756, 10492), (3172, 9116), (3233, 8944), (4472, 6466), (4558, 6344), (5246, 5512)]