30491940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{619}}^1\times {\mathrm{821}}^1$

素因数の和:1452

約数の個数: 48

約数和(自身を含む): 85619520

約数和(自身を除く): 55127580

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 619, 821, 1238, 1642, 1857, 2463, 2476, 3095, 3284, 3714, 4105, 4926, 6190, 7428, 8210, 9285, 9852, 12315, 12380, 16420, 18570, 24630, 37140, 49260, 508199, 1016398, 1524597, 2032796, 2540995, 3049194, 5081990, 6098388, 7622985, 10163980, 15245970, 30491940]

約数ペア:

[(1, 30491940), (2, 15245970), (3, 10163980), (4, 7622985), (5, 6098388), (6, 5081990), (10, 3049194), (12, 2540995), (15, 2032796), (20, 1524597), (30, 1016398), (60, 508199), (619, 49260), (821, 37140), (1238, 24630), (1642, 18570), (1857, 16420), (2463, 12380), (2476, 12315), (3095, 9852), (3284, 9285), (3714, 8210), (4105, 7428), (4926, 6190)]