81017960

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{1061}}^1$

素因数の和:1178

約数の個数: 64

約数和(自身を含む): 192689280

約数和(自身を除く): 111671320

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 83, 92, 115, 166, 184, 230, 332, 415, 460, 664, 830, 920, 1061, 1660, 1909, 2122, 3320, 3818, 4244, 5305, 7636, 8488, 9545, 10610, 15272, 19090, 21220, 24403, 38180, 42440, 48806, 76360, 88063, 97612, 122015, 176126, 195224, 244030, 352252, 440315, 488060, 704504, 880630, 976120, 1761260, 2025449, 3522520, 4050898, 8101796, 10127245, 16203592, 20254490, 40508980, 81017960]

約数ペア:

[(1, 81017960), (2, 40508980), (4, 20254490), (5, 16203592), (8, 10127245), (10, 8101796), (20, 4050898), (23, 3522520), (40, 2025449), (46, 1761260), (83, 976120), (92, 880630), (115, 704504), (166, 488060), (184, 440315), (230, 352252), (332, 244030), (415, 195224), (460, 176126), (664, 122015), (830, 97612), (920, 88063), (1061, 76360), (1660, 48806), (1909, 42440), (2122, 38180), (3320, 24403), (3818, 21220), (4244, 19090), (5305, 15272), (7636, 10610), (8488, 9545)]