210905940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{653}}^1\times {\mathrm{769}}^1$

素因数の和:1441

約数の個数: 96

約数和(自身を含む): 676811520

約数和(自身を除く): 465905580

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 653, 769, 1306, 1538, 1959, 2307, 2612, 3076, 3265, 3845, 3918, 4571, 4614, 5383, 6530, 7690, 7836, 9142, 9228, 9795, 10766, 11535, 13060, 13713, 15380, 16149, 18284, 19590, 21532, 22855, 23070, 26915, 27426, 32298, 39180, 45710, 46140, 53830, 54852, 64596, 68565, 80745, 91420, 107660, 137130, 161490, 274260, 322980, 502157, 1004314, 1506471, 2008628, 2510785, 3012942, 3515099, 5021570, 6025884, 7030198, 7532355, 10043140, 10545297, 14060396, 15064710, 17575495, 21090594, 30129420, 35150990, 42181188, 52726485, 70301980, 105452970, 210905940]

約数ペア:

[(1, 210905940), (2, 105452970), (3, 70301980), (4, 52726485), (5, 42181188), (6, 35150990), (7, 30129420), (10, 21090594), (12, 17575495), (14, 15064710), (15, 14060396), (20, 10545297), (21, 10043140), (28, 7532355), (30, 7030198), (35, 6025884), (42, 5021570), (60, 3515099), (70, 3012942), (84, 2510785), (105, 2008628), (140, 1506471), (210, 1004314), (420, 502157), (653, 322980), (769, 274260), (1306, 161490), (1538, 137130), (1959, 107660), (2307, 91420), (2612, 80745), (3076, 68565), (3265, 64596), (3845, 54852), (3918, 53830), (4571, 46140), (4614, 45710), (5383, 39180), (6530, 32298), (7690, 27426), (7836, 26915), (9142, 23070), (9228, 22855), (9795, 21532), (10766, 19590), (11535, 18284), (13060, 16149), (13713, 15380)]