28780455620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{367}}^1\times {\mathrm{560149}}^1$

素因数の和:560532

約数の個数: 48

約数和(自身を含む): 69261427200

約数和(自身を除く): 40480971580

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 367, 734, 1468, 1835, 2569, 3670, 5138, 7340, 10276, 12845, 25690, 51380, 560149, 1120298, 2240596, 2800745, 3921043, 5601490, 7842086, 11202980, 15684172, 19605215, 39210430, 78420860, 205574683, 411149366, 822298732, 1027873415, 1439022781, 2055746830, 2878045562, 4111493660, 5756091124, 7195113905, 14390227810, 28780455620]

約数ペア:

[(1, 28780455620), (2, 14390227810), (4, 7195113905), (5, 5756091124), (7, 4111493660), (10, 2878045562), (14, 2055746830), (20, 1439022781), (28, 1027873415), (35, 822298732), (70, 411149366), (140, 205574683), (367, 78420860), (734, 39210430), (1468, 19605215), (1835, 15684172), (2569, 11202980), (3670, 7842086), (5138, 5601490), (7340, 3921043), (10276, 2800745), (12845, 2240596), (25690, 1120298), (51380, 560149)]