388496686

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{331}}^1\times {\mathrm{461}}^1$

素因数の和:880

約数の個数: 32

約数和(自身を含む): 625806720

約数和(自身を除く): 237310034

約数列:

[1, 2, 19, 38, 67, 134, 331, 461, 662, 922, 1273, 2546, 6289, 8759, 12578, 17518, 22177, 30887, 44354, 61774, 152591, 305182, 421363, 586853, 842726, 1173706, 2899229, 5798458, 10223597, 20447194, 194248343, 388496686]

約数ペア:

[(1, 388496686), (2, 194248343), (19, 20447194), (38, 10223597), (67, 5798458), (134, 2899229), (331, 1173706), (461, 842726), (662, 586853), (922, 421363), (1273, 305182), (2546, 152591), (6289, 61774), (8759, 44354), (12578, 30887), (17518, 22177)]