78648520

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{32233}}^1$

素因数の和:32305

約数の個数: 32

約数和(自身を含む): 179865720

約数和(自身を除く): 101217200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 32233, 64466, 128932, 161165, 257864, 322330, 644660, 1289320, 1966213, 3932426, 7864852, 9831065, 15729704, 19662130, 39324260, 78648520]

約数ペア:

[(1, 78648520), (2, 39324260), (4, 19662130), (5, 15729704), (8, 9831065), (10, 7864852), (20, 3932426), (40, 1966213), (61, 1289320), (122, 644660), (244, 322330), (305, 257864), (488, 161165), (610, 128932), (1220, 64466), (2440, 32233)]