431640100

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{1447}}^1$

素因数の和:1637

約数の個数: 72

約数和(自身を含む): 992922560

約数和(自身を除く): 561282460

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 157, 190, 314, 380, 475, 628, 785, 950, 1447, 1570, 1900, 2894, 2983, 3140, 3925, 5788, 5966, 7235, 7850, 11932, 14470, 14915, 15700, 27493, 28940, 29830, 36175, 54986, 59660, 72350, 74575, 109972, 137465, 144700, 149150, 227179, 274930, 298300, 454358, 549860, 687325, 908716, 1135895, 1374650, 2271790, 2749300, 4316401, 4543580, 5679475, 8632802, 11358950, 17265604, 21582005, 22717900, 43164010, 86328020, 107910025, 215820050, 431640100]

約数ペア:

[(1, 431640100), (2, 215820050), (4, 107910025), (5, 86328020), (10, 43164010), (19, 22717900), (20, 21582005), (25, 17265604), (38, 11358950), (50, 8632802), (76, 5679475), (95, 4543580), (100, 4316401), (157, 2749300), (190, 2271790), (314, 1374650), (380, 1135895), (475, 908716), (628, 687325), (785, 549860), (950, 454358), (1447, 298300), (1570, 274930), (1900, 227179), (2894, 149150), (2983, 144700), (3140, 137465), (3925, 109972), (5788, 74575), (5966, 72350), (7235, 59660), (7850, 54986), (11932, 36175), (14470, 29830), (14915, 28940), (15700, 27493)]