61520680

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{613}}^1$

素因数の和:830

約数の個数: 64

約数和(自身を含む): 150086160

約数和(自身を除く): 88565480

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 193, 260, 386, 520, 613, 772, 965, 1226, 1544, 1930, 2452, 2509, 3065, 3860, 4904, 5018, 6130, 7720, 7969, 10036, 12260, 12545, 15938, 20072, 24520, 25090, 31876, 39845, 50180, 63752, 79690, 100360, 118309, 159380, 236618, 318760, 473236, 591545, 946472, 1183090, 1538017, 2366180, 3076034, 4732360, 6152068, 7690085, 12304136, 15380170, 30760340, 61520680]

約数ペア:

[(1, 61520680), (2, 30760340), (4, 15380170), (5, 12304136), (8, 7690085), (10, 6152068), (13, 4732360), (20, 3076034), (26, 2366180), (40, 1538017), (52, 1183090), (65, 946472), (104, 591545), (130, 473236), (193, 318760), (260, 236618), (386, 159380), (520, 118309), (613, 100360), (772, 79690), (965, 63752), (1226, 50180), (1544, 39845), (1930, 31876), (2452, 25090), (2509, 24520), (3065, 20072), (3860, 15938), (4904, 12545), (5018, 12260), (6130, 10036), (7720, 7969)]