398045360

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{216329}}^1$

素因数の和:216365

約数の個数: 40

約数和(自身を含む): 965697120

約数和(自身を除く): 567651760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 460, 920, 1840, 216329, 432658, 865316, 1081645, 1730632, 2163290, 3461264, 4326580, 4975567, 8653160, 9951134, 17306320, 19902268, 24877835, 39804536, 49755670, 79609072, 99511340, 199022680, 398045360]

約数ペア:

[(1, 398045360), (2, 199022680), (4, 99511340), (5, 79609072), (8, 49755670), (10, 39804536), (16, 24877835), (20, 19902268), (23, 17306320), (40, 9951134), (46, 8653160), (80, 4975567), (92, 4326580), (115, 3461264), (184, 2163290), (230, 1730632), (368, 1081645), (460, 865316), (920, 432658), (1840, 216329)]