31186680

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{271}}^1$

素因数の和:429

約数の個数: 128

約数和(自身を含む): 108103680

約数和(自身を除く): 76917000

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 137, 140, 168, 210, 271, 274, 280, 411, 420, 542, 548, 685, 813, 822, 840, 959, 1084, 1096, 1355, 1370, 1626, 1644, 1897, 1918, 2055, 2168, 2710, 2740, 2877, 3252, 3288, 3794, 3836, 4065, 4110, 4795, 5420, 5480, 5691, 5754, 6504, 7588, 7672, 8130, 8220, 9485, 9590, 10840, 11382, 11508, 14385, 15176, 16260, 16440, 18970, 19180, 22764, 23016, 28455, 28770, 32520, 37127, 37940, 38360, 45528, 56910, 57540, 74254, 75880, 111381, 113820, 115080, 148508, 185635, 222762, 227640, 259889, 297016, 371270, 445524, 519778, 556905, 742540, 779667, 891048, 1039556, 1113810, 1299445, 1485080, 1559334, 2079112, 2227620, 2598890, 3118668, 3898335, 4455240, 5197780, 6237336, 7796670, 10395560, 15593340, 31186680]

約数ペア:

[(1, 31186680), (2, 15593340), (3, 10395560), (4, 7796670), (5, 6237336), (6, 5197780), (7, 4455240), (8, 3898335), (10, 3118668), (12, 2598890), (14, 2227620), (15, 2079112), (20, 1559334), (21, 1485080), (24, 1299445), (28, 1113810), (30, 1039556), (35, 891048), (40, 779667), (42, 742540), (56, 556905), (60, 519778), (70, 445524), (84, 371270), (105, 297016), (120, 259889), (137, 227640), (140, 222762), (168, 185635), (210, 148508), (271, 115080), (274, 113820), (280, 111381), (411, 75880), (420, 74254), (542, 57540), (548, 56910), (685, 45528), (813, 38360), (822, 37940), (840, 37127), (959, 32520), (1084, 28770), (1096, 28455), (1355, 23016), (1370, 22764), (1626, 19180), (1644, 18970), (1897, 16440), (1918, 16260), (2055, 15176), (2168, 14385), (2710, 11508), (2740, 11382), (2877, 10840), (3252, 9590), (3288, 9485), (3794, 8220), (3836, 8130), (4065, 7672), (4110, 7588), (4795, 6504), (5420, 5754), (5480, 5691)]