20180996680

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{173}}^1\times {\mathrm{11807}}^1$

素因数の和:12023

約数の個数: 128

約数和(自身を含む): 51775718400

約数和(自身を除く): 31594721720

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 38, 40, 52, 65, 76, 95, 104, 130, 152, 173, 190, 247, 260, 346, 380, 494, 520, 692, 760, 865, 988, 1235, 1384, 1730, 1976, 2249, 2470, 3287, 3460, 4498, 4940, 6574, 6920, 8996, 9880, 11245, 11807, 13148, 16435, 17992, 22490, 23614, 26296, 32870, 42731, 44980, 47228, 59035, 65740, 85462, 89960, 94456, 118070, 131480, 153491, 170924, 213655, 224333, 236140, 306982, 341848, 427310, 448666, 472280, 613964, 767455, 854620, 897332, 1121665, 1227928, 1534910, 1709240, 1794664, 2042611, 2243330, 2916329, 3069820, 4085222, 4486660, 5832658, 6139640, 8170444, 8973320, 10213055, 11665316, 14581645, 16340888, 20426110, 23330632, 26553943, 29163290, 38809609, 40852220, 53107886, 58326580, 77619218, 81704440, 106215772, 116653160, 132769715, 155238436, 194048045, 212431544, 265539430, 310476872, 388096090, 504524917, 531078860, 776192180, 1009049834, 1062157720, 1552384360, 2018099668, 2522624585, 4036199336, 5045249170, 10090498340, 20180996680]

約数ペア:

[(1, 20180996680), (2, 10090498340), (4, 5045249170), (5, 4036199336), (8, 2522624585), (10, 2018099668), (13, 1552384360), (19, 1062157720), (20, 1009049834), (26, 776192180), (38, 531078860), (40, 504524917), (52, 388096090), (65, 310476872), (76, 265539430), (95, 212431544), (104, 194048045), (130, 155238436), (152, 132769715), (173, 116653160), (190, 106215772), (247, 81704440), (260, 77619218), (346, 58326580), (380, 53107886), (494, 40852220), (520, 38809609), (692, 29163290), (760, 26553943), (865, 23330632), (988, 20426110), (1235, 16340888), (1384, 14581645), (1730, 11665316), (1976, 10213055), (2249, 8973320), (2470, 8170444), (3287, 6139640), (3460, 5832658), (4498, 4486660), (4940, 4085222), (6574, 3069820), (6920, 2916329), (8996, 2243330), (9880, 2042611), (11245, 1794664), (11807, 1709240), (13148, 1534910), (16435, 1227928), (17992, 1121665), (22490, 897332), (23614, 854620), (26296, 767455), (32870, 613964), (42731, 472280), (44980, 448666), (47228, 427310), (59035, 341848), (65740, 306982), (85462, 236140), (89960, 224333), (94456, 213655), (118070, 170924), (131480, 153491)]