388303912

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{19501}}^1$

素因数の和:19657

約数の個数: 32

約数和(自身を含む): 772279200

約数和(自身を除く): 383975288

約数列:

[1, 2, 4, 8, 19, 38, 76, 131, 152, 262, 524, 1048, 2489, 4978, 9956, 19501, 19912, 39002, 78004, 156008, 370519, 741038, 1482076, 2554631, 2964152, 5109262, 10218524, 20437048, 48537989, 97075978, 194151956, 388303912]

約数ペア:

[(1, 388303912), (2, 194151956), (4, 97075978), (8, 48537989), (19, 20437048), (38, 10218524), (76, 5109262), (131, 2964152), (152, 2554631), (262, 1482076), (524, 741038), (1048, 370519), (2489, 156008), (4978, 78004), (9956, 39002), (19501, 19912)]