1265858480

素因数分解:

$2^4\times 5^1\times {\mathrm{809}}^1\times {\mathrm{19559}}^1$

素因数の和:20381

約数の個数: 40

約数和(自身を含む): 2946909600

約数和(自身を除く): 1681051120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 809, 1618, 3236, 4045, 6472, 8090, 12944, 16180, 19559, 32360, 39118, 64720, 78236, 97795, 156472, 195590, 312944, 391180, 782360, 1564720, 15823231, 31646462, 63292924, 79116155, 126585848, 158232310, 253171696, 316464620, 632929240, 1265858480]

約数ペア:

[(1, 1265858480), (2, 632929240), (4, 316464620), (5, 253171696), (8, 158232310), (10, 126585848), (16, 79116155), (20, 63292924), (40, 31646462), (80, 15823231), (809, 1564720), (1618, 782360), (3236, 391180), (4045, 312944), (6472, 195590), (8090, 156472), (12944, 97795), (16180, 78236), (19559, 64720), (32360, 39118)]