328156660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{619}}^1\times {\mathrm{2039}}^1$

素因数の和:2680

約数の個数: 48

約数和(自身を含む): 743702400

約数和(自身を除く): 415545740

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 619, 1238, 2039, 2476, 3095, 4078, 6190, 8047, 8156, 10195, 12380, 16094, 20390, 26507, 32188, 40235, 40780, 53014, 80470, 106028, 132535, 160940, 265070, 530140, 1262141, 2524282, 5048564, 6310705, 12621410, 16407833, 25242820, 32815666, 65631332, 82039165, 164078330, 328156660]

約数ペア:

[(1, 328156660), (2, 164078330), (4, 82039165), (5, 65631332), (10, 32815666), (13, 25242820), (20, 16407833), (26, 12621410), (52, 6310705), (65, 5048564), (130, 2524282), (260, 1262141), (619, 530140), (1238, 265070), (2039, 160940), (2476, 132535), (3095, 106028), (4078, 80470), (6190, 53014), (8047, 40780), (8156, 40235), (10195, 32188), (12380, 26507), (16094, 20390)]