644112872

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{2293}}^1$

素因数の和:2422

約数の個数: 64

約数和(自身を含む): 1354652880

約数和(自身を除く): 710540008

約数列:

[1, 2, 4, 8, 13, 26, 37, 52, 73, 74, 104, 146, 148, 292, 296, 481, 584, 949, 962, 1898, 1924, 2293, 2701, 3796, 3848, 4586, 5402, 7592, 9172, 10804, 18344, 21608, 29809, 35113, 59618, 70226, 84841, 119236, 140452, 167389, 169682, 238472, 280904, 334778, 339364, 669556, 678728, 1102933, 1339112, 2176057, 2205866, 4352114, 4411732, 6193393, 8704228, 8823464, 12386786, 17408456, 24773572, 49547144, 80514109, 161028218, 322056436, 644112872]

約数ペア:

[(1, 644112872), (2, 322056436), (4, 161028218), (8, 80514109), (13, 49547144), (26, 24773572), (37, 17408456), (52, 12386786), (73, 8823464), (74, 8704228), (104, 6193393), (146, 4411732), (148, 4352114), (292, 2205866), (296, 2176057), (481, 1339112), (584, 1102933), (949, 678728), (962, 669556), (1898, 339364), (1924, 334778), (2293, 280904), (2701, 238472), (3796, 169682), (3848, 167389), (4586, 140452), (5402, 119236), (7592, 84841), (9172, 70226), (10804, 59618), (18344, 35113), (21608, 29809)]