18769700

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{181}}^1$

素因数の和:273

約数の個数: 72

約数和(自身を含む): 44075304

約数和(自身を除く): 25305604

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 61, 68, 85, 100, 122, 170, 181, 244, 305, 340, 362, 425, 610, 724, 850, 905, 1037, 1220, 1525, 1700, 1810, 2074, 3050, 3077, 3620, 4148, 4525, 5185, 6100, 6154, 9050, 10370, 11041, 12308, 15385, 18100, 20740, 22082, 25925, 30770, 44164, 51850, 55205, 61540, 76925, 103700, 110410, 153850, 187697, 220820, 276025, 307700, 375394, 552050, 750788, 938485, 1104100, 1876970, 3753940, 4692425, 9384850, 18769700]

約数ペア:

[(1, 18769700), (2, 9384850), (4, 4692425), (5, 3753940), (10, 1876970), (17, 1104100), (20, 938485), (25, 750788), (34, 552050), (50, 375394), (61, 307700), (68, 276025), (85, 220820), (100, 187697), (122, 153850), (170, 110410), (181, 103700), (244, 76925), (305, 61540), (340, 55205), (362, 51850), (425, 44164), (610, 30770), (724, 25925), (850, 22082), (905, 20740), (1037, 18100), (1220, 15385), (1525, 12308), (1700, 11041), (1810, 10370), (2074, 9050), (3050, 6154), (3077, 6100), (3620, 5185), (4148, 4525)]