19511920

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{14347}}^1$

素因数の和:14377

約数の個数: 40

約数和(自身を含む): 48037104

約数和(自身を除く): 28525184

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 14347, 28694, 57388, 71735, 114776, 143470, 229552, 243899, 286940, 487798, 573880, 975596, 1147760, 1219495, 1951192, 2438990, 3902384, 4877980, 9755960, 19511920]

約数ペア:

[(1, 19511920), (2, 9755960), (4, 4877980), (5, 3902384), (8, 2438990), (10, 1951192), (16, 1219495), (17, 1147760), (20, 975596), (34, 573880), (40, 487798), (68, 286940), (80, 243899), (85, 229552), (136, 143470), (170, 114776), (272, 71735), (340, 57388), (680, 28694), (1360, 14347)]