129220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1$

素因数の和:100

約数の個数: 48

約数和(自身を含む): 338688

約数和(自身を除く): 209468

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 71, 91, 130, 140, 142, 182, 260, 284, 355, 364, 455, 497, 710, 910, 923, 994, 1420, 1820, 1846, 1988, 2485, 3692, 4615, 4970, 6461, 9230, 9940, 12922, 18460, 25844, 32305, 64610, 129220]

約数ペア:

[(1, 129220), (2, 64610), (4, 32305), (5, 25844), (7, 18460), (10, 12922), (13, 9940), (14, 9230), (20, 6461), (26, 4970), (28, 4615), (35, 3692), (52, 2485), (65, 1988), (70, 1846), (71, 1820), (91, 1420), (130, 994), (140, 923), (142, 910), (182, 710), (260, 497), (284, 455), (355, 364)]