16781180

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1$

素因数の和:163

約数の個数: 96

約数和(自身を含む): 41395200

約数和(自身を除く): 24614020

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 43, 52, 65, 76, 79, 86, 95, 130, 158, 172, 190, 215, 247, 260, 316, 380, 395, 430, 494, 559, 790, 817, 860, 988, 1027, 1118, 1235, 1501, 1580, 1634, 2054, 2236, 2470, 2795, 3002, 3268, 3397, 4085, 4108, 4940, 5135, 5590, 6004, 6794, 7505, 8170, 10270, 10621, 11180, 13588, 15010, 16340, 16985, 19513, 20540, 21242, 30020, 33970, 39026, 42484, 44161, 53105, 64543, 67940, 78052, 88322, 97565, 106210, 129086, 176644, 195130, 212420, 220805, 258172, 322715, 390260, 441610, 645430, 839059, 883220, 1290860, 1678118, 3356236, 4195295, 8390590, 16781180]

約数ペア:

[(1, 16781180), (2, 8390590), (4, 4195295), (5, 3356236), (10, 1678118), (13, 1290860), (19, 883220), (20, 839059), (26, 645430), (38, 441610), (43, 390260), (52, 322715), (65, 258172), (76, 220805), (79, 212420), (86, 195130), (95, 176644), (130, 129086), (158, 106210), (172, 97565), (190, 88322), (215, 78052), (247, 67940), (260, 64543), (316, 53105), (380, 44161), (395, 42484), (430, 39026), (494, 33970), (559, 30020), (790, 21242), (817, 20540), (860, 19513), (988, 16985), (1027, 16340), (1118, 15010), (1235, 13588), (1501, 11180), (1580, 10621), (1634, 10270), (2054, 8170), (2236, 7505), (2470, 6794), (2795, 6004), (3002, 5590), (3268, 5135), (3397, 4940), (4085, 4108)]