19204900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1$

素因数の和:134

約数の個数: 144

約数和(自身を含む): 52496640

約数和(自身を除く): 33291740

約数列:

[1, 2, 4, 5, 10, 11, 13, 17, 20, 22, 25, 26, 34, 44, 50, 52, 55, 65, 68, 79, 85, 100, 110, 130, 143, 158, 170, 187, 220, 221, 260, 275, 286, 316, 325, 340, 374, 395, 425, 442, 550, 572, 650, 715, 748, 790, 850, 869, 884, 935, 1027, 1100, 1105, 1300, 1343, 1430, 1580, 1700, 1738, 1870, 1975, 2054, 2210, 2431, 2686, 2860, 3476, 3575, 3740, 3950, 4108, 4345, 4420, 4675, 4862, 5135, 5372, 5525, 6715, 7150, 7900, 8690, 9350, 9724, 10270, 11050, 11297, 12155, 13430, 14300, 14773, 17380, 17459, 18700, 20540, 21725, 22100, 22594, 24310, 25675, 26860, 29546, 33575, 34918, 43450, 45188, 48620, 51350, 56485, 59092, 60775, 67150, 69836, 73865, 86900, 87295, 102700, 112970, 121550, 134300, 147730, 174590, 192049, 225940, 243100, 282425, 295460, 349180, 369325, 384098, 436475, 564850, 738650, 768196, 872950, 960245, 1129700, 1477300, 1745900, 1920490, 3840980, 4801225, 9602450, 19204900]

約数ペア:

[(1, 19204900), (2, 9602450), (4, 4801225), (5, 3840980), (10, 1920490), (11, 1745900), (13, 1477300), (17, 1129700), (20, 960245), (22, 872950), (25, 768196), (26, 738650), (34, 564850), (44, 436475), (50, 384098), (52, 369325), (55, 349180), (65, 295460), (68, 282425), (79, 243100), (85, 225940), (100, 192049), (110, 174590), (130, 147730), (143, 134300), (158, 121550), (170, 112970), (187, 102700), (220, 87295), (221, 86900), (260, 73865), (275, 69836), (286, 67150), (316, 60775), (325, 59092), (340, 56485), (374, 51350), (395, 48620), (425, 45188), (442, 43450), (550, 34918), (572, 33575), (650, 29546), (715, 26860), (748, 25675), (790, 24310), (850, 22594), (869, 22100), (884, 21725), (935, 20540), (1027, 18700), (1100, 17459), (1105, 17380), (1300, 14773), (1343, 14300), (1430, 13430), (1580, 12155), (1700, 11297), (1738, 11050), (1870, 10270), (1975, 9724), (2054, 9350), (2210, 8690), (2431, 7900), (2686, 7150), (2860, 6715), (3476, 5525), (3575, 5372), (3740, 5135), (3950, 4862), (4108, 4675), (4345, 4420)]