305102440

素因数分解:

$2^3\times 5^1\times {\mathrm{397}}^1\times {\mathrm{19213}}^1$

素因数の和:19621

約数の個数: 32

約数和(自身を含む): 688245480

約数和(自身を除く): 383143040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 397, 794, 1588, 1985, 3176, 3970, 7940, 15880, 19213, 38426, 76852, 96065, 153704, 192130, 384260, 768520, 7627561, 15255122, 30510244, 38137805, 61020488, 76275610, 152551220, 305102440]

約数ペア:

[(1, 305102440), (2, 152551220), (4, 76275610), (5, 61020488), (8, 38137805), (10, 30510244), (20, 15255122), (40, 7627561), (397, 768520), (794, 384260), (1588, 192130), (1985, 153704), (3176, 96065), (3970, 76852), (7940, 38426), (15880, 19213)]