28081228

素因数分解:

$2^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{401}}^1$

素因数の和:514

約数の個数: 48

約数和(自身を含む): 58621248

約数和(自身を除く): 30540020

約数列:

[1, 2, 4, 7, 14, 28, 41, 61, 82, 122, 164, 244, 287, 401, 427, 574, 802, 854, 1148, 1604, 1708, 2501, 2807, 5002, 5614, 10004, 11228, 16441, 17507, 24461, 32882, 35014, 48922, 65764, 70028, 97844, 115087, 171227, 230174, 342454, 460348, 684908, 1002901, 2005802, 4011604, 7020307, 14040614, 28081228]

約数ペア:

[(1, 28081228), (2, 14040614), (4, 7020307), (7, 4011604), (14, 2005802), (28, 1002901), (41, 684908), (61, 460348), (82, 342454), (122, 230174), (164, 171227), (244, 115087), (287, 97844), (401, 70028), (427, 65764), (574, 48922), (802, 35014), (854, 32882), (1148, 24461), (1604, 17507), (1708, 16441), (2501, 11228), (2807, 10004), (5002, 5614)]