136721780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{16963}}^1$

素因数の和:17016

約数の個数: 48

約数和(自身を含む): 319194624

約数和(自身を除く): 182472844

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 260, 310, 403, 620, 806, 1612, 2015, 4030, 8060, 16963, 33926, 67852, 84815, 169630, 220519, 339260, 441038, 525853, 882076, 1051706, 1102595, 2103412, 2205190, 2629265, 4410380, 5258530, 6836089, 10517060, 13672178, 27344356, 34180445, 68360890, 136721780]

約数ペア:

[(1, 136721780), (2, 68360890), (4, 34180445), (5, 27344356), (10, 13672178), (13, 10517060), (20, 6836089), (26, 5258530), (31, 4410380), (52, 2629265), (62, 2205190), (65, 2103412), (124, 1102595), (130, 1051706), (155, 882076), (260, 525853), (310, 441038), (403, 339260), (620, 220519), (806, 169630), (1612, 84815), (2015, 67852), (4030, 33926), (8060, 16963)]