194979920

素因数分解:

$2^4\times 5^1\times {\mathrm{647}}^1\times {\mathrm{3767}}^1$

素因数の和:4427

約数の個数: 40

約数和(自身を含む): 454149504

約数和(自身を除く): 259169584

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 647, 1294, 2588, 3235, 3767, 5176, 6470, 7534, 10352, 12940, 15068, 18835, 25880, 30136, 37670, 51760, 60272, 75340, 150680, 301360, 2437249, 4874498, 9748996, 12186245, 19497992, 24372490, 38995984, 48744980, 97489960, 194979920]

約数ペア:

[(1, 194979920), (2, 97489960), (4, 48744980), (5, 38995984), (8, 24372490), (10, 19497992), (16, 12186245), (20, 9748996), (40, 4874498), (80, 2437249), (647, 301360), (1294, 150680), (2588, 75340), (3235, 60272), (3767, 51760), (5176, 37670), (6470, 30136), (7534, 25880), (10352, 18835), (12940, 15068)]