135855640

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{331}}^2$

素因数の和:704

約数の個数: 48

約数和(自身を含む): 316491840

約数和(自身を除く): 180636200

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 331, 620, 662, 1240, 1324, 1655, 2648, 3310, 6620, 10261, 13240, 20522, 41044, 51305, 82088, 102610, 109561, 205220, 219122, 410440, 438244, 547805, 876488, 1095610, 2191220, 3396391, 4382440, 6792782, 13585564, 16981955, 27171128, 33963910, 67927820, 135855640]

約数ペア:

[(1, 135855640), (2, 67927820), (4, 33963910), (5, 27171128), (8, 16981955), (10, 13585564), (20, 6792782), (31, 4382440), (40, 3396391), (62, 2191220), (124, 1095610), (155, 876488), (248, 547805), (310, 438244), (331, 410440), (620, 219122), (662, 205220), (1240, 109561), (1324, 102610), (1655, 82088), (2648, 51305), (3310, 41044), (6620, 20522), (10261, 13240)]