201991190830

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{780401}}^1$

素因数の和:780613

約数の個数: 64

約数和(自身を含む): 429508287936

約数和(自身を除く): 227517097106

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 110, 130, 143, 181, 286, 362, 715, 905, 1430, 1810, 1991, 2353, 3982, 4706, 9955, 11765, 19910, 23530, 25883, 51766, 129415, 258830, 780401, 1560802, 3902005, 7804010, 8584411, 10145213, 17168822, 20290426, 42922055, 50726065, 85844110, 101452130, 111597343, 141252581, 223194686, 282505162, 557986715, 706262905, 1115973430, 1412525810, 1553778391, 1836283553, 3107556782, 3672567106, 7768891955, 9181417765, 15537783910, 18362835530, 20199119083, 40398238166, 100995595415, 201991190830]

約数ペア:

[(1, 201991190830), (2, 100995595415), (5, 40398238166), (10, 20199119083), (11, 18362835530), (13, 15537783910), (22, 9181417765), (26, 7768891955), (55, 3672567106), (65, 3107556782), (110, 1836283553), (130, 1553778391), (143, 1412525810), (181, 1115973430), (286, 706262905), (362, 557986715), (715, 282505162), (905, 223194686), (1430, 141252581), (1810, 111597343), (1991, 101452130), (2353, 85844110), (3982, 50726065), (4706, 42922055), (9955, 20290426), (11765, 17168822), (19910, 10145213), (23530, 8584411), (25883, 7804010), (51766, 3902005), (129415, 1560802), (258830, 780401)]