220199590

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{9791}}^1$

素因数の和:9984

約数の個数: 32

約数和(自身を含む): 429359616

約数和(自身を除く): 209160026

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 173, 346, 865, 1730, 2249, 4498, 9791, 11245, 19582, 22490, 48955, 97910, 127283, 254566, 636415, 1272830, 1693843, 3387686, 8469215, 16938430, 22019959, 44039918, 110099795, 220199590]

約数ペア:

[(1, 220199590), (2, 110099795), (5, 44039918), (10, 22019959), (13, 16938430), (26, 8469215), (65, 3387686), (130, 1693843), (173, 1272830), (346, 636415), (865, 254566), (1730, 127283), (2249, 97910), (4498, 48955), (9791, 22490), (11245, 19582)]