1256548720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{28403}}^1$

素因数の和:28502

約数の個数: 80

約数和(自身を含む): 3381212160

約数和(自身を除く): 2124663440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 79, 80, 112, 140, 158, 280, 316, 395, 553, 560, 632, 790, 1106, 1264, 1580, 2212, 2765, 3160, 4424, 5530, 6320, 8848, 11060, 22120, 28403, 44240, 56806, 113612, 142015, 198821, 227224, 284030, 397642, 454448, 568060, 795284, 994105, 1136120, 1590568, 1988210, 2243837, 2272240, 3181136, 3976420, 4487674, 7952840, 8975348, 11219185, 15706859, 15905680, 17950696, 22438370, 31413718, 35901392, 44876740, 62827436, 78534295, 89753480, 125654872, 157068590, 179506960, 251309744, 314137180, 628274360, 1256548720]

約数ペア:

[(1, 1256548720), (2, 628274360), (4, 314137180), (5, 251309744), (7, 179506960), (8, 157068590), (10, 125654872), (14, 89753480), (16, 78534295), (20, 62827436), (28, 44876740), (35, 35901392), (40, 31413718), (56, 22438370), (70, 17950696), (79, 15905680), (80, 15706859), (112, 11219185), (140, 8975348), (158, 7952840), (280, 4487674), (316, 3976420), (395, 3181136), (553, 2272240), (560, 2243837), (632, 1988210), (790, 1590568), (1106, 1136120), (1264, 994105), (1580, 795284), (2212, 568060), (2765, 454448), (3160, 397642), (4424, 284030), (5530, 227224), (6320, 198821), (8848, 142015), (11060, 113612), (22120, 56806), (28403, 44240)]