20180855044

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{239689}}^1$

素因数の和:239828

約数の個数: 48

約数和(自身を含む): 42093399040

約数和(自身を除く): 21912543996

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 97, 124, 194, 217, 388, 434, 679, 868, 1358, 2716, 3007, 6014, 12028, 21049, 42098, 84196, 239689, 479378, 958756, 1677823, 3355646, 6711292, 7430359, 14860718, 23249833, 29721436, 46499666, 52012513, 92999332, 104025026, 162748831, 208050052, 325497662, 650995324, 720744823, 1441489646, 2882979292, 5045213761, 10090427522, 20180855044]

約数ペア:

[(1, 20180855044), (2, 10090427522), (4, 5045213761), (7, 2882979292), (14, 1441489646), (28, 720744823), (31, 650995324), (62, 325497662), (97, 208050052), (124, 162748831), (194, 104025026), (217, 92999332), (388, 52012513), (434, 46499666), (679, 29721436), (868, 23249833), (1358, 14860718), (2716, 7430359), (3007, 6711292), (6014, 3355646), (12028, 1677823), (21049, 958756), (42098, 479378), (84196, 239689)]