90352780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{4643}}^1$

素因数の和:4798

約数の個数: 48

約数和(自身を含む): 218453760

約数和(自身を除く): 128100980

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 139, 140, 278, 556, 695, 973, 1390, 1946, 2780, 3892, 4643, 4865, 9286, 9730, 18572, 19460, 23215, 32501, 46430, 65002, 92860, 130004, 162505, 325010, 645377, 650020, 1290754, 2581508, 3226885, 4517639, 6453770, 9035278, 12907540, 18070556, 22588195, 45176390, 90352780]

約数ペア:

[(1, 90352780), (2, 45176390), (4, 22588195), (5, 18070556), (7, 12907540), (10, 9035278), (14, 6453770), (20, 4517639), (28, 3226885), (35, 2581508), (70, 1290754), (139, 650020), (140, 645377), (278, 325010), (556, 162505), (695, 130004), (973, 92860), (1390, 65002), (1946, 46430), (2780, 32501), (3892, 23215), (4643, 19460), (4865, 18572), (9286, 9730)]