201109780

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{269}}^1\times {\mathrm{1289}}^1$

素因数の和:1596

約数の個数: 48

約数和(自身を含む): 438858000

約数和(自身を除く): 237748220

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 269, 290, 538, 580, 1076, 1289, 1345, 2578, 2690, 5156, 5380, 6445, 7801, 12890, 15602, 25780, 31204, 37381, 39005, 74762, 78010, 149524, 156020, 186905, 346741, 373810, 693482, 747620, 1386964, 1733705, 3467410, 6934820, 10055489, 20110978, 40221956, 50277445, 100554890, 201109780]

約数ペア:

[(1, 201109780), (2, 100554890), (4, 50277445), (5, 40221956), (10, 20110978), (20, 10055489), (29, 6934820), (58, 3467410), (116, 1733705), (145, 1386964), (269, 747620), (290, 693482), (538, 373810), (580, 346741), (1076, 186905), (1289, 156020), (1345, 149524), (2578, 78010), (2690, 74762), (5156, 39005), (5380, 37381), (6445, 31204), (7801, 25780), (12890, 15602)]