209970860

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{5273}}^1$

素因数の和:5474

約数の個数: 48

約数和(自身を含む): 483773472

約数和(自身を除く): 273802612

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 181, 220, 362, 724, 905, 1810, 1991, 3620, 3982, 5273, 7964, 9955, 10546, 19910, 21092, 26365, 39820, 52730, 58003, 105460, 116006, 232012, 290015, 580030, 954413, 1160060, 1908826, 3817652, 4772065, 9544130, 10498543, 19088260, 20997086, 41994172, 52492715, 104985430, 209970860]

約数ペア:

[(1, 209970860), (2, 104985430), (4, 52492715), (5, 41994172), (10, 20997086), (11, 19088260), (20, 10498543), (22, 9544130), (44, 4772065), (55, 3817652), (110, 1908826), (181, 1160060), (220, 954413), (362, 580030), (724, 290015), (905, 232012), (1810, 116006), (1991, 105460), (3620, 58003), (3982, 52730), (5273, 39820), (7964, 26365), (9955, 21092), (10546, 19910)]