19541730

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{563}}^1$

素因数の和:675

約数の個数: 64

約数和(自身を含む): 51166080

約数和(自身を除く): 31624350

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 89, 130, 178, 195, 267, 390, 445, 534, 563, 890, 1126, 1157, 1335, 1689, 2314, 2670, 2815, 3378, 3471, 5630, 5785, 6942, 7319, 8445, 11570, 14638, 16890, 17355, 21957, 34710, 36595, 43914, 50107, 73190, 100214, 109785, 150321, 219570, 250535, 300642, 501070, 651391, 751605, 1302782, 1503210, 1954173, 3256955, 3908346, 6513910, 9770865, 19541730]

約数ペア:

[(1, 19541730), (2, 9770865), (3, 6513910), (5, 3908346), (6, 3256955), (10, 1954173), (13, 1503210), (15, 1302782), (26, 751605), (30, 651391), (39, 501070), (65, 300642), (78, 250535), (89, 219570), (130, 150321), (178, 109785), (195, 100214), (267, 73190), (390, 50107), (445, 43914), (534, 36595), (563, 34710), (890, 21957), (1126, 17355), (1157, 16890), (1335, 14638), (1689, 11570), (2314, 8445), (2670, 7319), (2815, 6942), (3378, 5785), (3471, 5630)]