78778130

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{199}}^1\times {\mathrm{1277}}^1$

素因数の和:1514

約数の個数: 32

約数和(自身を含む): 147225600

約数和(自身を除く): 68447470

約数列:

[1, 2, 5, 10, 31, 62, 155, 199, 310, 398, 995, 1277, 1990, 2554, 6169, 6385, 12338, 12770, 30845, 39587, 61690, 79174, 197935, 254123, 395870, 508246, 1270615, 2541230, 7877813, 15755626, 39389065, 78778130]

約数ペア:

[(1, 78778130), (2, 39389065), (5, 15755626), (10, 7877813), (31, 2541230), (62, 1270615), (155, 508246), (199, 395870), (310, 254123), (398, 197935), (995, 79174), (1277, 61690), (1990, 39587), (2554, 30845), (6169, 12770), (6385, 12338)]