203438120

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{359}}^1\times {\mathrm{457}}^1$

素因数の和:858

約数の個数: 64

約数和(自身を含む): 474854400

約数和(自身を除く): 271416280

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 359, 457, 620, 718, 914, 1240, 1436, 1795, 1828, 2285, 2872, 3590, 3656, 4570, 7180, 9140, 11129, 14167, 14360, 18280, 22258, 28334, 44516, 55645, 56668, 70835, 89032, 111290, 113336, 141670, 164063, 222580, 283340, 328126, 445160, 566680, 656252, 820315, 1312504, 1640630, 3281260, 5085953, 6562520, 10171906, 20343812, 25429765, 40687624, 50859530, 101719060, 203438120]

約数ペア:

[(1, 203438120), (2, 101719060), (4, 50859530), (5, 40687624), (8, 25429765), (10, 20343812), (20, 10171906), (31, 6562520), (40, 5085953), (62, 3281260), (124, 1640630), (155, 1312504), (248, 820315), (310, 656252), (359, 566680), (457, 445160), (620, 328126), (718, 283340), (914, 222580), (1240, 164063), (1436, 141670), (1795, 113336), (1828, 111290), (2285, 89032), (2872, 70835), (3590, 56668), (3656, 55645), (4570, 44516), (7180, 28334), (9140, 22258), (11129, 18280), (14167, 14360)]