28378764

素因数分解:

$2^2\times 3^2\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{431}}^1$

素因数の和:531

約数の個数: 72

約数和(自身を含む): 75479040

約数和(自身を除く): 47100276

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 31, 36, 59, 62, 93, 118, 124, 177, 186, 236, 279, 354, 372, 431, 531, 558, 708, 862, 1062, 1116, 1293, 1724, 1829, 2124, 2586, 3658, 3879, 5172, 5487, 7316, 7758, 10974, 13361, 15516, 16461, 21948, 25429, 26722, 32922, 40083, 50858, 53444, 65844, 76287, 80166, 101716, 120249, 152574, 160332, 228861, 240498, 305148, 457722, 480996, 788299, 915444, 1576598, 2364897, 3153196, 4729794, 7094691, 9459588, 14189382, 28378764]

約数ペア:

[(1, 28378764), (2, 14189382), (3, 9459588), (4, 7094691), (6, 4729794), (9, 3153196), (12, 2364897), (18, 1576598), (31, 915444), (36, 788299), (59, 480996), (62, 457722), (93, 305148), (118, 240498), (124, 228861), (177, 160332), (186, 152574), (236, 120249), (279, 101716), (354, 80166), (372, 76287), (431, 65844), (531, 53444), (558, 50858), (708, 40083), (862, 32922), (1062, 26722), (1116, 25429), (1293, 21948), (1724, 16461), (1829, 15516), (2124, 13361), (2586, 10974), (3658, 7758), (3879, 7316), (5172, 5487)]