258611780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{461}}^1\times {\mathrm{4007}}^1$

素因数の和:4484

約数の個数: 48

約数和(自身を含む): 622169856

約数和(自身を除く): 363558076

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 461, 922, 1844, 2305, 3227, 4007, 4610, 6454, 8014, 9220, 12908, 16028, 16135, 20035, 28049, 32270, 40070, 56098, 64540, 80140, 112196, 140245, 280490, 560980, 1847227, 3694454, 7388908, 9236135, 12930589, 18472270, 25861178, 36944540, 51722356, 64652945, 129305890, 258611780]

約数ペア:

[(1, 258611780), (2, 129305890), (4, 64652945), (5, 51722356), (7, 36944540), (10, 25861178), (14, 18472270), (20, 12930589), (28, 9236135), (35, 7388908), (70, 3694454), (140, 1847227), (461, 560980), (922, 280490), (1844, 140245), (2305, 112196), (3227, 80140), (4007, 64540), (4610, 56098), (6454, 40070), (8014, 32270), (9220, 28049), (12908, 20035), (16028, 16135)]