16405360

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{251}}^1$

素因数の和:326

約数の個数: 80

約数和(自身を含む): 41247360

約数和(自身を除く): 24842000

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 43, 76, 80, 86, 95, 152, 172, 190, 215, 251, 304, 344, 380, 430, 502, 688, 760, 817, 860, 1004, 1255, 1520, 1634, 1720, 2008, 2510, 3268, 3440, 4016, 4085, 4769, 5020, 6536, 8170, 9538, 10040, 10793, 13072, 16340, 19076, 20080, 21586, 23845, 32680, 38152, 43172, 47690, 53965, 65360, 76304, 86344, 95380, 107930, 172688, 190760, 205067, 215860, 381520, 410134, 431720, 820268, 863440, 1025335, 1640536, 2050670, 3281072, 4101340, 8202680, 16405360]

約数ペア:

[(1, 16405360), (2, 8202680), (4, 4101340), (5, 3281072), (8, 2050670), (10, 1640536), (16, 1025335), (19, 863440), (20, 820268), (38, 431720), (40, 410134), (43, 381520), (76, 215860), (80, 205067), (86, 190760), (95, 172688), (152, 107930), (172, 95380), (190, 86344), (215, 76304), (251, 65360), (304, 53965), (344, 47690), (380, 43172), (430, 38152), (502, 32680), (688, 23845), (760, 21586), (817, 20080), (860, 19076), (1004, 16340), (1255, 13072), (1520, 10793), (1634, 10040), (1720, 9538), (2008, 8170), (2510, 6536), (3268, 5020), (3440, 4769), (4016, 4085)]