81705204

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{89}}^1\times {\mathrm{3643}}^1$

素因数の和:3749

約数の個数: 72

約数和(自身を含む): 238754880

約数和(自身を除く): 157049676

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 89, 126, 178, 252, 267, 356, 534, 623, 801, 1068, 1246, 1602, 1869, 2492, 3204, 3643, 3738, 5607, 7286, 7476, 10929, 11214, 14572, 21858, 22428, 25501, 32787, 43716, 51002, 65574, 76503, 102004, 131148, 153006, 229509, 306012, 324227, 459018, 648454, 918036, 972681, 1296908, 1945362, 2269589, 2918043, 3890724, 4539178, 5836086, 6808767, 9078356, 11672172, 13617534, 20426301, 27235068, 40852602, 81705204]

約数ペア:

[(1, 81705204), (2, 40852602), (3, 27235068), (4, 20426301), (6, 13617534), (7, 11672172), (9, 9078356), (12, 6808767), (14, 5836086), (18, 4539178), (21, 3890724), (28, 2918043), (36, 2269589), (42, 1945362), (63, 1296908), (84, 972681), (89, 918036), (126, 648454), (178, 459018), (252, 324227), (267, 306012), (356, 229509), (534, 153006), (623, 131148), (801, 102004), (1068, 76503), (1246, 65574), (1602, 51002), (1869, 43716), (2492, 32787), (3204, 25501), (3643, 22428), (3738, 21858), (5607, 14572), (7286, 11214), (7476, 10929)]