12881830

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{503}}^1$

素因数の和:720

約数の個数: 32

約数和(自身を含む): 25147584

約数和(自身を除く): 12265754

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 197, 394, 503, 985, 1006, 1970, 2515, 2561, 5030, 5122, 6539, 12805, 13078, 25610, 32695, 65390, 99091, 198182, 495455, 990910, 1288183, 2576366, 6440915, 12881830]

約数ペア:

[(1, 12881830), (2, 6440915), (5, 2576366), (10, 1288183), (13, 990910), (26, 495455), (65, 198182), (130, 99091), (197, 65390), (394, 32695), (503, 25610), (985, 13078), (1006, 12805), (1970, 6539), (2515, 5122), (2561, 5030)]