20173148108

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{53}}^2\times {\mathrm{251}}^1\times {\mathrm{311}}^1$

素因数の和:695

約数の個数: 72

約数和(自身を含む): 37816886016

約数和(自身を除く): 17643737908

約数列:

[1, 2, 4, 23, 46, 53, 92, 106, 212, 251, 311, 502, 622, 1004, 1219, 1244, 2438, 2809, 4876, 5618, 5773, 7153, 11236, 11546, 13303, 14306, 16483, 23092, 26606, 28612, 32966, 53212, 64607, 65932, 78061, 129214, 156122, 258428, 305969, 312244, 379109, 611938, 705059, 758218, 873599, 1223876, 1410118, 1516436, 1747198, 1795403, 2820236, 3494396, 3590806, 4137233, 7181612, 8274466, 16216357, 16548932, 20092777, 32432714, 40185554, 64865428, 80371108, 95156359, 190312718, 219273349, 380625436, 438546698, 877093396, 5043287027, 10086574054, 20173148108]

約数ペア:

[(1, 20173148108), (2, 10086574054), (4, 5043287027), (23, 877093396), (46, 438546698), (53, 380625436), (92, 219273349), (106, 190312718), (212, 95156359), (251, 80371108), (311, 64865428), (502, 40185554), (622, 32432714), (1004, 20092777), (1219, 16548932), (1244, 16216357), (2438, 8274466), (2809, 7181612), (4876, 4137233), (5618, 3590806), (5773, 3494396), (7153, 2820236), (11236, 1795403), (11546, 1747198), (13303, 1516436), (14306, 1410118), (16483, 1223876), (23092, 873599), (26606, 758218), (28612, 705059), (32966, 611938), (53212, 379109), (64607, 312244), (65932, 305969), (78061, 258428), (129214, 156122)]