12491990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{7759}}^1$

素因数の和:7796

約数の個数: 32

約数和(自身を含む): 26818560

約数和(自身を除く): 14326570

約数列:

[1, 2, 5, 7, 10, 14, 23, 35, 46, 70, 115, 161, 230, 322, 805, 1610, 7759, 15518, 38795, 54313, 77590, 108626, 178457, 271565, 356914, 543130, 892285, 1249199, 1784570, 2498398, 6245995, 12491990]

約数ペア:

[(1, 12491990), (2, 6245995), (5, 2498398), (7, 1784570), (10, 1249199), (14, 892285), (23, 543130), (35, 356914), (46, 271565), (70, 178457), (115, 108626), (161, 77590), (230, 54313), (322, 38795), (805, 15518), (1610, 7759)]