20163871420

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{16553}}^1$

素因数の和:16700

約数の個数: 144

約数和(自身を含む): 54214217568

約数和(自身を除く): 34050346148

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 70, 77, 98, 110, 113, 140, 154, 196, 220, 226, 245, 308, 385, 452, 490, 539, 565, 770, 791, 980, 1078, 1130, 1243, 1540, 1582, 2156, 2260, 2486, 2695, 3164, 3955, 4972, 5390, 5537, 6215, 7910, 8701, 10780, 11074, 12430, 15820, 16553, 17402, 22148, 24860, 27685, 33106, 34804, 43505, 55370, 60907, 66212, 82765, 87010, 110740, 115871, 121814, 165530, 174020, 182083, 231742, 243628, 304535, 331060, 364166, 463484, 579355, 609070, 728332, 811097, 910415, 1158710, 1218140, 1274581, 1622194, 1820830, 1870489, 2317420, 2549162, 3244388, 3641660, 3740978, 4055485, 5098324, 6372905, 7481956, 8110970, 8922067, 9352445, 12745810, 13093423, 16221940, 17844134, 18704890, 20575379, 25491620, 26186846, 35688268, 37409780, 41150758, 44610335, 52373692, 65467115, 82301516, 89220670, 91653961, 102876895, 130934230, 144027653, 178441340, 183307922, 205753790, 261868460, 288055306, 366615844, 411507580, 458269805, 576110612, 720138265, 916539610, 1008193571, 1440276530, 1833079220, 2016387142, 2880553060, 4032774284, 5040967855, 10081935710, 20163871420]

約数ペア:

[(1, 20163871420), (2, 10081935710), (4, 5040967855), (5, 4032774284), (7, 2880553060), (10, 2016387142), (11, 1833079220), (14, 1440276530), (20, 1008193571), (22, 916539610), (28, 720138265), (35, 576110612), (44, 458269805), (49, 411507580), (55, 366615844), (70, 288055306), (77, 261868460), (98, 205753790), (110, 183307922), (113, 178441340), (140, 144027653), (154, 130934230), (196, 102876895), (220, 91653961), (226, 89220670), (245, 82301516), (308, 65467115), (385, 52373692), (452, 44610335), (490, 41150758), (539, 37409780), (565, 35688268), (770, 26186846), (791, 25491620), (980, 20575379), (1078, 18704890), (1130, 17844134), (1243, 16221940), (1540, 13093423), (1582, 12745810), (2156, 9352445), (2260, 8922067), (2486, 8110970), (2695, 7481956), (3164, 6372905), (3955, 5098324), (4972, 4055485), (5390, 3740978), (5537, 3641660), (6215, 3244388), (7910, 2549162), (8701, 2317420), (10780, 1870489), (11074, 1820830), (12430, 1622194), (15820, 1274581), (16553, 1218140), (17402, 1158710), (22148, 910415), (24860, 811097), (27685, 728332), (33106, 609070), (34804, 579355), (43505, 463484), (55370, 364166), (60907, 331060), (66212, 304535), (82765, 243628), (87010, 231742), (110740, 182083), (115871, 174020), (121814, 165530)]