1289512940

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{1031}}^1\times {\mathrm{2719}}^1$

素因数の和:3782

約数の個数: 48

約数和(自身を含む): 2829496320

約数和(自身を除く): 1539983380

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 1031, 2062, 2719, 4124, 5155, 5438, 10310, 10876, 13595, 20620, 23713, 27190, 47426, 54380, 62537, 94852, 118565, 125074, 237130, 250148, 312685, 474260, 625370, 1250740, 2803289, 5606578, 11213156, 14016445, 28032890, 56065780, 64475647, 128951294, 257902588, 322378235, 644756470, 1289512940]

約数ペア:

[(1, 1289512940), (2, 644756470), (4, 322378235), (5, 257902588), (10, 128951294), (20, 64475647), (23, 56065780), (46, 28032890), (92, 14016445), (115, 11213156), (230, 5606578), (460, 2803289), (1031, 1250740), (2062, 625370), (2719, 474260), (4124, 312685), (5155, 250148), (5438, 237130), (10310, 125074), (10876, 118565), (13595, 94852), (20620, 62537), (23713, 54380), (27190, 47426)]