280296320

素因数分解:

$2^7\times 5^1\times {\mathrm{191}}^1\times {\mathrm{2293}}^1$

素因数の和:2503

約数の個数: 64

約数和(自身を含む): 673885440

約数和(自身を除く): 393589120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 191, 320, 382, 640, 764, 955, 1528, 1910, 2293, 3056, 3820, 4586, 6112, 7640, 9172, 11465, 12224, 15280, 18344, 22930, 24448, 30560, 36688, 45860, 61120, 73376, 91720, 122240, 146752, 183440, 293504, 366880, 437963, 733760, 875926, 1467520, 1751852, 2189815, 3503704, 4379630, 7007408, 8759260, 14014816, 17518520, 28029632, 35037040, 56059264, 70074080, 140148160, 280296320]

約数ペア:

[(1, 280296320), (2, 140148160), (4, 70074080), (5, 56059264), (8, 35037040), (10, 28029632), (16, 17518520), (20, 14014816), (32, 8759260), (40, 7007408), (64, 4379630), (80, 3503704), (128, 2189815), (160, 1751852), (191, 1467520), (320, 875926), (382, 733760), (640, 437963), (764, 366880), (955, 293504), (1528, 183440), (1910, 146752), (2293, 122240), (3056, 91720), (3820, 73376), (4586, 61120), (6112, 45860), (7640, 36688), (9172, 30560), (11465, 24448), (12224, 22930), (15280, 18344)]