168905940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{73}}^1\times {\mathrm{787}}^1$

素因数の和:886

約数の個数: 144

約数和(自身を含む): 558395712

約数和(自身を除く): 389489772

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 73, 84, 98, 105, 140, 146, 147, 196, 210, 219, 245, 292, 294, 365, 420, 438, 490, 511, 588, 730, 735, 787, 876, 980, 1022, 1095, 1460, 1470, 1533, 1574, 2044, 2190, 2361, 2555, 2940, 3066, 3148, 3577, 3935, 4380, 4722, 5110, 5509, 6132, 7154, 7665, 7870, 9444, 10220, 10731, 11018, 11805, 14308, 15330, 15740, 16527, 17885, 21462, 22036, 23610, 27545, 30660, 33054, 35770, 38563, 42924, 47220, 53655, 55090, 57451, 66108, 71540, 77126, 82635, 107310, 110180, 114902, 115689, 154252, 165270, 172353, 192815, 214620, 229804, 231378, 287255, 330540, 344706, 385630, 402157, 462756, 574510, 578445, 689412, 771260, 804314, 861765, 1149020, 1156890, 1206471, 1608628, 1723530, 2010785, 2313780, 2412942, 2815099, 3447060, 4021570, 4825884, 5630198, 6032355, 8043140, 8445297, 11260396, 12064710, 14075495, 16890594, 24129420, 28150990, 33781188, 42226485, 56301980, 84452970, 168905940]

約数ペア:

[(1, 168905940), (2, 84452970), (3, 56301980), (4, 42226485), (5, 33781188), (6, 28150990), (7, 24129420), (10, 16890594), (12, 14075495), (14, 12064710), (15, 11260396), (20, 8445297), (21, 8043140), (28, 6032355), (30, 5630198), (35, 4825884), (42, 4021570), (49, 3447060), (60, 2815099), (70, 2412942), (73, 2313780), (84, 2010785), (98, 1723530), (105, 1608628), (140, 1206471), (146, 1156890), (147, 1149020), (196, 861765), (210, 804314), (219, 771260), (245, 689412), (292, 578445), (294, 574510), (365, 462756), (420, 402157), (438, 385630), (490, 344706), (511, 330540), (588, 287255), (730, 231378), (735, 229804), (787, 214620), (876, 192815), (980, 172353), (1022, 165270), (1095, 154252), (1460, 115689), (1470, 114902), (1533, 110180), (1574, 107310), (2044, 82635), (2190, 77126), (2361, 71540), (2555, 66108), (2940, 57451), (3066, 55090), (3148, 53655), (3577, 47220), (3935, 42924), (4380, 38563), (4722, 35770), (5110, 33054), (5509, 30660), (6132, 27545), (7154, 23610), (7665, 22036), (7870, 21462), (9444, 17885), (10220, 16527), (10731, 15740), (11018, 15330), (11805, 14308)]