823460

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1$

素因数の和:236

約数の個数: 48

約数和(自身を含む): 1995840

約数和(自身を除く): 1172380

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 190, 197, 209, 220, 380, 394, 418, 788, 836, 985, 1045, 1970, 2090, 2167, 3743, 3940, 4180, 4334, 7486, 8668, 10835, 14972, 18715, 21670, 37430, 41173, 43340, 74860, 82346, 164692, 205865, 411730, 823460]

約数ペア:

[(1, 823460), (2, 411730), (4, 205865), (5, 164692), (10, 82346), (11, 74860), (19, 43340), (20, 41173), (22, 37430), (38, 21670), (44, 18715), (55, 14972), (76, 10835), (95, 8668), (110, 7486), (190, 4334), (197, 4180), (209, 3940), (220, 3743), (380, 2167), (394, 2090), (418, 1970), (788, 1045), (836, 985)]