20693560

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{271}}^1$

素因数の和:388

約数の個数: 64

約数和(自身を含む): 49351680

約数和(自身を除く): 28658120

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 83, 92, 115, 166, 184, 230, 271, 332, 415, 460, 542, 664, 830, 920, 1084, 1355, 1660, 1909, 2168, 2710, 3320, 3818, 5420, 6233, 7636, 9545, 10840, 12466, 15272, 19090, 22493, 24932, 31165, 38180, 44986, 49864, 62330, 76360, 89972, 112465, 124660, 179944, 224930, 249320, 449860, 517339, 899720, 1034678, 2069356, 2586695, 4138712, 5173390, 10346780, 20693560]

約数ペア:

[(1, 20693560), (2, 10346780), (4, 5173390), (5, 4138712), (8, 2586695), (10, 2069356), (20, 1034678), (23, 899720), (40, 517339), (46, 449860), (83, 249320), (92, 224930), (115, 179944), (166, 124660), (184, 112465), (230, 89972), (271, 76360), (332, 62330), (415, 49864), (460, 44986), (542, 38180), (664, 31165), (830, 24932), (920, 22493), (1084, 19090), (1355, 15272), (1660, 12466), (1909, 10840), (2168, 9545), (2710, 7636), (3320, 6233), (3818, 5420)]