19313920

素因数分解:

$2^8\times 5^1\times {\mathrm{79}}^1\times {\mathrm{191}}^1$

素因数の和:291

約数の個数: 72

約数和(自身を含む): 47093760

約数和(自身を除く): 27779840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 79, 80, 128, 158, 160, 191, 256, 316, 320, 382, 395, 632, 640, 764, 790, 955, 1264, 1280, 1528, 1580, 1910, 2528, 3056, 3160, 3820, 5056, 6112, 6320, 7640, 10112, 12224, 12640, 15089, 15280, 20224, 24448, 25280, 30178, 30560, 48896, 50560, 60356, 61120, 75445, 101120, 120712, 122240, 150890, 241424, 244480, 301780, 482848, 603560, 965696, 1207120, 1931392, 2414240, 3862784, 4828480, 9656960, 19313920]

約数ペア:

[(1, 19313920), (2, 9656960), (4, 4828480), (5, 3862784), (8, 2414240), (10, 1931392), (16, 1207120), (20, 965696), (32, 603560), (40, 482848), (64, 301780), (79, 244480), (80, 241424), (128, 150890), (158, 122240), (160, 120712), (191, 101120), (256, 75445), (316, 61120), (320, 60356), (382, 50560), (395, 48896), (632, 30560), (640, 30178), (764, 25280), (790, 24448), (955, 20224), (1264, 15280), (1280, 15089), (1528, 12640), (1580, 12224), (1910, 10112), (2528, 7640), (3056, 6320), (3160, 6112), (3820, 5056)]