620464

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1$

素因数の和:197

約数の個数: 40

約数和(自身を含む): 1371440

約数和(自身を除く): 750976

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 76, 104, 152, 157, 208, 247, 304, 314, 494, 628, 988, 1256, 1976, 2041, 2512, 2983, 3952, 4082, 5966, 8164, 11932, 16328, 23864, 32656, 38779, 47728, 77558, 155116, 310232, 620464]

約数ペア:

[(1, 620464), (2, 310232), (4, 155116), (8, 77558), (13, 47728), (16, 38779), (19, 32656), (26, 23864), (38, 16328), (52, 11932), (76, 8164), (104, 5966), (152, 4082), (157, 3952), (208, 2983), (247, 2512), (304, 2041), (314, 1976), (494, 1256), (628, 988)]