213451760

素因数分解:

$2^4\times 5^1\times {\mathrm{163}}^1\times {\mathrm{16369}}^1$

素因数の和:16545

約数の個数: 40

約数和(自身を含む): 499350480

約数和(自身を除く): 285898720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 163, 326, 652, 815, 1304, 1630, 2608, 3260, 6520, 13040, 16369, 32738, 65476, 81845, 130952, 163690, 261904, 327380, 654760, 1309520, 2668147, 5336294, 10672588, 13340735, 21345176, 26681470, 42690352, 53362940, 106725880, 213451760]

約数ペア:

[(1, 213451760), (2, 106725880), (4, 53362940), (5, 42690352), (8, 26681470), (10, 21345176), (16, 13340735), (20, 10672588), (40, 5336294), (80, 2668147), (163, 1309520), (326, 654760), (652, 327380), (815, 261904), (1304, 163690), (1630, 130952), (2608, 81845), (3260, 65476), (6520, 32738), (13040, 16369)]