19537680

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{127}}^1\times {\mathrm{641}}^1$

素因数の和:784

約数の個数: 80

約数和(自身を含む): 61138944

約数和(自身を除く): 41601264

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 127, 240, 254, 381, 508, 635, 641, 762, 1016, 1270, 1282, 1524, 1905, 1923, 2032, 2540, 2564, 3048, 3205, 3810, 3846, 5080, 5128, 6096, 6410, 7620, 7692, 9615, 10160, 10256, 12820, 15240, 15384, 19230, 25640, 30480, 30768, 38460, 51280, 76920, 81407, 153840, 162814, 244221, 325628, 407035, 488442, 651256, 814070, 976884, 1221105, 1302512, 1628140, 1953768, 2442210, 3256280, 3907536, 4884420, 6512560, 9768840, 19537680]

約数ペア:

[(1, 19537680), (2, 9768840), (3, 6512560), (4, 4884420), (5, 3907536), (6, 3256280), (8, 2442210), (10, 1953768), (12, 1628140), (15, 1302512), (16, 1221105), (20, 976884), (24, 814070), (30, 651256), (40, 488442), (48, 407035), (60, 325628), (80, 244221), (120, 162814), (127, 153840), (240, 81407), (254, 76920), (381, 51280), (508, 38460), (635, 30768), (641, 30480), (762, 25640), (1016, 19230), (1270, 15384), (1282, 15240), (1524, 12820), (1905, 10256), (1923, 10160), (2032, 9615), (2540, 7692), (2564, 7620), (3048, 6410), (3205, 6096), (3810, 5128), (3846, 5080)]