843640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1$

素因数の和:172

約数の個数: 64

約数和(自身を含む): 2280960

約数和(自身を除く): 1437320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 56, 70, 92, 115, 131, 140, 161, 184, 230, 262, 280, 322, 460, 524, 644, 655, 805, 917, 920, 1048, 1288, 1310, 1610, 1834, 2620, 3013, 3220, 3668, 4585, 5240, 6026, 6440, 7336, 9170, 12052, 15065, 18340, 21091, 24104, 30130, 36680, 42182, 60260, 84364, 105455, 120520, 168728, 210910, 421820, 843640]

約数ペア:

[(1, 843640), (2, 421820), (4, 210910), (5, 168728), (7, 120520), (8, 105455), (10, 84364), (14, 60260), (20, 42182), (23, 36680), (28, 30130), (35, 24104), (40, 21091), (46, 18340), (56, 15065), (70, 12052), (92, 9170), (115, 7336), (131, 6440), (140, 6026), (161, 5240), (184, 4585), (230, 3668), (262, 3220), (280, 3013), (322, 2620), (460, 1834), (524, 1610), (644, 1310), (655, 1288), (805, 1048), (917, 920)]