129305820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{307871}}^1$

素因数の和:307890

約数の個数: 48

約数和(自身を含む): 413779968

約数和(自身を除く): 284474148

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, 307871, 615742, 923613, 1231484, 1539355, 1847226, 2155097, 3078710, 3694452, 4310194, 4618065, 6157420, 6465291, 8620388, 9236130, 10775485, 12930582, 18472260, 21550970, 25861164, 32326455, 43101940, 64652910, 129305820]

約数ペア:

[(1, 129305820), (2, 64652910), (3, 43101940), (4, 32326455), (5, 25861164), (6, 21550970), (7, 18472260), (10, 12930582), (12, 10775485), (14, 9236130), (15, 8620388), (20, 6465291), (21, 6157420), (28, 4618065), (30, 4310194), (35, 3694452), (42, 3078710), (60, 2155097), (70, 1847226), (84, 1539355), (105, 1231484), (140, 923613), (210, 615742), (420, 307871)]