12978544

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{337}}^1$

素因数の和:457

約数の個数: 40

約数和(自身を含む): 26404560

約数和(自身を除く): 13426016

約数列:

[1, 2, 4, 8, 16, 29, 58, 83, 116, 166, 232, 332, 337, 464, 664, 674, 1328, 1348, 2407, 2696, 4814, 5392, 9628, 9773, 19256, 19546, 27971, 38512, 39092, 55942, 78184, 111884, 156368, 223768, 447536, 811159, 1622318, 3244636, 6489272, 12978544]

約数ペア:

[(1, 12978544), (2, 6489272), (4, 3244636), (8, 1622318), (16, 811159), (29, 447536), (58, 223768), (83, 156368), (116, 111884), (166, 78184), (232, 55942), (332, 39092), (337, 38512), (464, 27971), (664, 19546), (674, 19256), (1328, 9773), (1348, 9628), (2407, 5392), (2696, 4814)]