28851400

素因数分解:

$2^3\times 5^2\times {\mathrm{181}}^1\times {\mathrm{797}}^1$

素因数の和:994

約数の個数: 48

約数和(自身を含む): 67534740

約数和(自身を除く): 38683340

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 181, 200, 362, 724, 797, 905, 1448, 1594, 1810, 3188, 3620, 3985, 4525, 6376, 7240, 7970, 9050, 15940, 18100, 19925, 31880, 36200, 39850, 79700, 144257, 159400, 288514, 577028, 721285, 1154056, 1442570, 2885140, 3606425, 5770280, 7212850, 14425700, 28851400]

約数ペア:

[(1, 28851400), (2, 14425700), (4, 7212850), (5, 5770280), (8, 3606425), (10, 2885140), (20, 1442570), (25, 1154056), (40, 721285), (50, 577028), (100, 288514), (181, 159400), (200, 144257), (362, 79700), (724, 39850), (797, 36200), (905, 31880), (1448, 19925), (1594, 18100), (1810, 15940), (3188, 9050), (3620, 7970), (3985, 7240), (4525, 6376)]