21803080

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1823}}^1$

素因数の和:1870

約数の個数: 64

約数和(自身を含む): 55157760

約数和(自身を除く): 33354680

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 23, 26, 40, 46, 52, 65, 92, 104, 115, 130, 184, 230, 260, 299, 460, 520, 598, 920, 1196, 1495, 1823, 2392, 2990, 3646, 5980, 7292, 9115, 11960, 14584, 18230, 23699, 36460, 41929, 47398, 72920, 83858, 94796, 118495, 167716, 189592, 209645, 236990, 335432, 419290, 473980, 545077, 838580, 947960, 1090154, 1677160, 2180308, 2725385, 4360616, 5450770, 10901540, 21803080]

約数ペア:

[(1, 21803080), (2, 10901540), (4, 5450770), (5, 4360616), (8, 2725385), (10, 2180308), (13, 1677160), (20, 1090154), (23, 947960), (26, 838580), (40, 545077), (46, 473980), (52, 419290), (65, 335432), (92, 236990), (104, 209645), (115, 189592), (130, 167716), (184, 118495), (230, 94796), (260, 83858), (299, 72920), (460, 47398), (520, 41929), (598, 36460), (920, 23699), (1196, 18230), (1495, 14584), (1823, 11960), (2392, 9115), (2990, 7292), (3646, 5980)]