1921882040

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{911}}^1\times {\mathrm{4057}}^1$

素因数の和:4992

約数の個数: 64

約数和(自身を含む): 4663128960

約数和(自身を除く): 2741246920

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 911, 1822, 3644, 4057, 4555, 7288, 8114, 9110, 11843, 16228, 18220, 20285, 23686, 32456, 36440, 40570, 47372, 52741, 59215, 81140, 94744, 105482, 118430, 162280, 210964, 236860, 263705, 421928, 473720, 527410, 1054820, 2109640, 3695927, 7391854, 14783708, 18479635, 29567416, 36959270, 48047051, 73918540, 96094102, 147837080, 192188204, 240235255, 384376408, 480470510, 960941020, 1921882040]

約数ペア:

[(1, 1921882040), (2, 960941020), (4, 480470510), (5, 384376408), (8, 240235255), (10, 192188204), (13, 147837080), (20, 96094102), (26, 73918540), (40, 48047051), (52, 36959270), (65, 29567416), (104, 18479635), (130, 14783708), (260, 7391854), (520, 3695927), (911, 2109640), (1822, 1054820), (3644, 527410), (4057, 473720), (4555, 421928), (7288, 263705), (8114, 236860), (9110, 210964), (11843, 162280), (16228, 118430), (18220, 105482), (20285, 94744), (23686, 81140), (32456, 59215), (36440, 52741), (40570, 47372)]