30720454

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{457}}^1$

素因数の和:568

約数の個数: 32

約数和(自身を含む): 51112800

約数和(自身を除く): 20392346

約数列:

[1, 2, 19, 29, 38, 58, 61, 122, 457, 551, 914, 1102, 1159, 1769, 2318, 3538, 8683, 13253, 17366, 26506, 27877, 33611, 55754, 67222, 251807, 503614, 529663, 808433, 1059326, 1616866, 15360227, 30720454]

約数ペア:

[(1, 30720454), (2, 15360227), (19, 1616866), (29, 1059326), (38, 808433), (58, 529663), (61, 503614), (122, 251807), (457, 67222), (551, 55754), (914, 33611), (1102, 27877), (1159, 26506), (1769, 17366), (2318, 13253), (3538, 8683)]