20161432180

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{491}}^1\times {\mathrm{643}}^1$

素因数の和:1277

約数の個数: 96

約数和(自身を含む): 44287746048

約数和(自身を除く): 24126313868

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 103, 124, 155, 206, 310, 412, 491, 515, 620, 643, 982, 1030, 1286, 1964, 2060, 2455, 2572, 3193, 3215, 4910, 6386, 6430, 9820, 12772, 12860, 15221, 15965, 19933, 30442, 31930, 39866, 50573, 60884, 63860, 66229, 76105, 79732, 99665, 101146, 132458, 152210, 199330, 202292, 252865, 264916, 304420, 315713, 331145, 398660, 505730, 631426, 662290, 1011460, 1262852, 1324580, 1567763, 1578565, 2053099, 3135526, 3157130, 4106198, 6271052, 6314260, 7838815, 8212396, 9787103, 10265495, 15677630, 19574206, 20530990, 31355260, 32518439, 39148412, 41061980, 48935515, 65036878, 97871030, 130073756, 162592195, 195742060, 325184390, 650368780, 1008071609, 2016143218, 4032286436, 5040358045, 10080716090, 20161432180]

約数ペア:

[(1, 20161432180), (2, 10080716090), (4, 5040358045), (5, 4032286436), (10, 2016143218), (20, 1008071609), (31, 650368780), (62, 325184390), (103, 195742060), (124, 162592195), (155, 130073756), (206, 97871030), (310, 65036878), (412, 48935515), (491, 41061980), (515, 39148412), (620, 32518439), (643, 31355260), (982, 20530990), (1030, 19574206), (1286, 15677630), (1964, 10265495), (2060, 9787103), (2455, 8212396), (2572, 7838815), (3193, 6314260), (3215, 6271052), (4910, 4106198), (6386, 3157130), (6430, 3135526), (9820, 2053099), (12772, 1578565), (12860, 1567763), (15221, 1324580), (15965, 1262852), (19933, 1011460), (30442, 662290), (31930, 631426), (39866, 505730), (50573, 398660), (60884, 331145), (63860, 315713), (66229, 304420), (76105, 264916), (79732, 252865), (99665, 202292), (101146, 199330), (132458, 152210)]