90872554

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{197}}^1\times {\mathrm{199}}^1$

素因数の和:478

約数の個数: 32

約数和(自身を含む): 147312000

約数和(自身を除く): 56439446

約数列:

[1, 2, 19, 38, 61, 122, 197, 199, 394, 398, 1159, 2318, 3743, 3781, 7486, 7562, 12017, 12139, 24034, 24278, 39203, 78406, 228323, 230641, 456646, 461282, 744857, 1489714, 2391383, 4782766, 45436277, 90872554]

約数ペア:

[(1, 90872554), (2, 45436277), (19, 4782766), (38, 2391383), (61, 1489714), (122, 744857), (197, 461282), (199, 456646), (394, 230641), (398, 228323), (1159, 78406), (2318, 39203), (3743, 24278), (3781, 24034), (7486, 12139), (7562, 12017)]