19481840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1831}}^1$

素因数の和:1870

約数の個数: 80

約数和(自身を含む): 54520320

約数和(自身を除く): 35038480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 35, 38, 40, 56, 70, 76, 80, 95, 112, 133, 140, 152, 190, 266, 280, 304, 380, 532, 560, 665, 760, 1064, 1330, 1520, 1831, 2128, 2660, 3662, 5320, 7324, 9155, 10640, 12817, 14648, 18310, 25634, 29296, 34789, 36620, 51268, 64085, 69578, 73240, 102536, 128170, 139156, 146480, 173945, 205072, 243523, 256340, 278312, 347890, 487046, 512680, 556624, 695780, 974092, 1025360, 1217615, 1391560, 1948184, 2435230, 2783120, 3896368, 4870460, 9740920, 19481840]

約数ペア:

[(1, 19481840), (2, 9740920), (4, 4870460), (5, 3896368), (7, 2783120), (8, 2435230), (10, 1948184), (14, 1391560), (16, 1217615), (19, 1025360), (20, 974092), (28, 695780), (35, 556624), (38, 512680), (40, 487046), (56, 347890), (70, 278312), (76, 256340), (80, 243523), (95, 205072), (112, 173945), (133, 146480), (140, 139156), (152, 128170), (190, 102536), (266, 73240), (280, 69578), (304, 64085), (380, 51268), (532, 36620), (560, 34789), (665, 29296), (760, 25634), (1064, 18310), (1330, 14648), (1520, 12817), (1831, 10640), (2128, 9155), (2660, 7324), (3662, 5320)]