28564016

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{1543}}^1$

素因数の和:1653

約数の個数: 40

約数和(自身を含む): 60308640

約数和(自身を除く): 31744624

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 89, 104, 178, 208, 356, 712, 1157, 1424, 1543, 2314, 3086, 4628, 6172, 9256, 12344, 18512, 20059, 24688, 40118, 80236, 137327, 160472, 274654, 320944, 549308, 1098616, 1785251, 2197232, 3570502, 7141004, 14282008, 28564016]

約数ペア:

[(1, 28564016), (2, 14282008), (4, 7141004), (8, 3570502), (13, 2197232), (16, 1785251), (26, 1098616), (52, 549308), (89, 320944), (104, 274654), (178, 160472), (208, 137327), (356, 80236), (712, 40118), (1157, 24688), (1424, 20059), (1543, 18512), (2314, 12344), (3086, 9256), (4628, 6172)]