18982628

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{251}}^1$

素因数の和:372

約数の個数: 48

約数和(自身を含む): 39682944

約数和(自身を除く): 20700316

約数列:

[1, 2, 4, 7, 14, 28, 37, 73, 74, 146, 148, 251, 259, 292, 502, 511, 518, 1004, 1022, 1036, 1757, 2044, 2701, 3514, 5402, 7028, 9287, 10804, 18323, 18574, 18907, 36646, 37148, 37814, 65009, 73292, 75628, 128261, 130018, 256522, 260036, 513044, 677951, 1355902, 2711804, 4745657, 9491314, 18982628]

約数ペア:

[(1, 18982628), (2, 9491314), (4, 4745657), (7, 2711804), (14, 1355902), (28, 677951), (37, 513044), (73, 260036), (74, 256522), (146, 130018), (148, 128261), (251, 75628), (259, 73292), (292, 65009), (502, 37814), (511, 37148), (518, 36646), (1004, 18907), (1022, 18574), (1036, 18323), (1757, 10804), (2044, 9287), (2701, 7028), (3514, 5402)]