28213172

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{353}}^1$

素因数の和:452

約数の個数: 48

約数和(自身を含む): 56201040

約数和(自身を除く): 27987868

約数列:

[1, 2, 4, 13, 26, 29, 52, 53, 58, 106, 116, 212, 353, 377, 689, 706, 754, 1378, 1412, 1508, 1537, 2756, 3074, 4589, 6148, 9178, 10237, 18356, 18709, 19981, 20474, 37418, 39962, 40948, 74836, 79924, 133081, 243217, 266162, 486434, 532324, 542561, 972868, 1085122, 2170244, 7053293, 14106586, 28213172]

約数ペア:

[(1, 28213172), (2, 14106586), (4, 7053293), (13, 2170244), (26, 1085122), (29, 972868), (52, 542561), (53, 532324), (58, 486434), (106, 266162), (116, 243217), (212, 133081), (353, 79924), (377, 74836), (689, 40948), (706, 39962), (754, 37418), (1378, 20474), (1412, 19981), (1508, 18709), (1537, 18356), (2756, 10237), (3074, 9178), (4589, 6148)]