20406800

素因数分解:

$2^4\times 5^2\times {\mathrm{17}}^1\times {\mathrm{3001}}^1$

素因数の和:3036

約数の個数: 60

約数和(自身を含む): 51928596

約数和(自身を除く): 31521796

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 34, 40, 50, 68, 80, 85, 100, 136, 170, 200, 272, 340, 400, 425, 680, 850, 1360, 1700, 3001, 3400, 6002, 6800, 12004, 15005, 24008, 30010, 48016, 51017, 60020, 75025, 102034, 120040, 150050, 204068, 240080, 255085, 300100, 408136, 510170, 600200, 816272, 1020340, 1200400, 1275425, 2040680, 2550850, 4081360, 5101700, 10203400, 20406800]

約数ペア:

[(1, 20406800), (2, 10203400), (4, 5101700), (5, 4081360), (8, 2550850), (10, 2040680), (16, 1275425), (17, 1200400), (20, 1020340), (25, 816272), (34, 600200), (40, 510170), (50, 408136), (68, 300100), (80, 255085), (85, 240080), (100, 204068), (136, 150050), (170, 120040), (200, 102034), (272, 75025), (340, 60020), (400, 51017), (425, 48016), (680, 30010), (850, 24008), (1360, 15005), (1700, 12004), (3001, 6800), (3400, 6002)]