90316900

素因数分解:

$2^2\times 5^2\times {\mathrm{641}}^1\times {\mathrm{1409}}^1$

素因数の和:2064

約数の個数: 36

約数和(自身を含む): 196432740

約数和(自身を除く): 106115840

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 641, 1282, 1409, 2564, 2818, 3205, 5636, 6410, 7045, 12820, 14090, 16025, 28180, 32050, 35225, 64100, 70450, 140900, 903169, 1806338, 3612676, 4515845, 9031690, 18063380, 22579225, 45158450, 90316900]

約数ペア:

[(1, 90316900), (2, 45158450), (4, 22579225), (5, 18063380), (10, 9031690), (20, 4515845), (25, 3612676), (50, 1806338), (100, 903169), (641, 140900), (1282, 70450), (1409, 64100), (2564, 35225), (2818, 32050), (3205, 28180), (5636, 16025), (6410, 14090), (7045, 12820)]